SMALL SUPERNUMERARY MARKER CHROMOSOMES- sSMC 1 -
|
| Cases without clinical findings |
23 | Cases with clinical findings |
50 | symptoms |
| Cases with unclear clinical correlation |
Cases with neocentromeres |
6 |
tumor 1 |
|
In general 70% of sSMC carriers are clinically normal. The figures here
are based on the bias, that mainly clinically aberrant cases are reported in literature!
UPD (uniparental disomy) cases: UPD 1 maternal paternal unclear
PATIENTINFORMATION for sSMC(1)
the probably non-dosage sensitive pericentric region of chromosome 1
SCHEMATIC CYTOGENETIC DEPICTION
DISCLAIMER
SCHEMATIC MOLECULARGENETIC DEPICTION
acc. to UCSC Genome Browser on Human Mar. 2006 assembly [UCSC hg18, 2006]
and available BAC-data/ array-data from cases marked *** mentioned below [MB]
critical region 114.0--- 115.8 uncritical region [121.10 centromere 142.40] uncritical region ? --- ? critical region
Below adapted for UCSC hg19, 2009
critical region 114.2 --- 119.00 uncritical region [121.50 centromere 142.60] uncritical region ? --- ? critical region
Clinical symptoms of centromere-near proximal imbalances
|
chromosomal region |
1p - proximal | 1q - proximal |
| symptoms | ||
| ataxia | 8 % | 0 % |
| autism | 25 % | 0 % |
| brain malformations | 8 % | 10 % |
| developmental delay | 83 % | 40 % |
| dysmorphic face | 83 % | 90 % |
| finger or toe/foot malformations | 42 % | 20 % |
| genital abnormalities | 0 % | 20 % |
| growth retardation | 17 % | 50 % |
| heart defect | 17 % | 50 % |
| hypotonia | 25 % | 0 % |
| joint problems | 8 % | 10 % |
| kidney problems/ malformations | 8 % | 10 % |
| mental retardation | 58 % | 40 % |
| microcephaly | 58 % | 10 % |
| overgrowth | 17 % | 10 % |
| seizures | 0 % | 0 % |
| vision impaired | 8 % | 0 % |
| number of cases (marked with “°” below) | 12 | 10 |
Cases without clinical findings (O)
| case no. | gender/ age at diagnosis | studied material |
de novo/ inherited |
GTG-banding result grade of mosaicism |
final result of the sSMC | test methods |
clinical symptoms | reference | ||
| *** 01-O-p13.2/ 1-1 *** |
female/ 32y |
PBL | n.a. | 47,XX,+mar[78%]/ 46,XX[22%] |
min(1)(::p11.2→q11::) RP11-130B18 (115.8MB) |
cenM, subcenM | normal women, previous pregnancy child with Arthrogryposis multiplex | {0} provided by Dr. Zerres, Aaachen, Germany | ||
| 01-O-p12/ 1-1 |
female/ 33y | PBL | de novo and passed to one child maternal | 47,XX,+min[30%]/ 46,XX[70%] |
min(1)(:p11.2~12→q12:) | cep probes subcenM |
Healthy woman; sSMC detected due to advanced maternal age in second pregnancy and first pregnancy with trisomy 18 | {41} case 1-22 | ||
| 01-O-p12/ 1-2 |
male/ prenatal | PBL | n.a. | 47,XY,+min[24]/ 46,XY[6] |
mar(1)(:p12→q1?2:) array-CGH: 118.326.077-120.311.644 |
array-CGH, wcp 1 |
Advanced maternal age; healthy young man at age of 14y | {0} provided by Dr. J Lemke, Abt. Human-genetik; Uni-klinik; Inselspital; Bern, Switzerland | ||
| 01-O-p11.2/ 1-1 |
n.a./ prenatal | PBL | maternal (in 55% of PBL) | 47,+r[100%] | r(1)(::p11.2→q10::) RP11-115N23 (120.9MB) on 1p present on sSMC |
M-FISH; cep 1/5/19; BACs{42} subcenM like; UPD-test |
Advanced maternal age; normal child | {42} case 5 | ||
| 01-O-p10/ 1-1 |
female/ prenatal newborn |
AF PBL |
de novo | 47,XX,+r[26%]/ 46,XX[74%] r present in only 8% of PBL |
r(1)(::p10→q12::)* | all available centromeric probes | Amniocentesis due to low serum AFP; no ultrasound abnormalities; child normal at 9m of age | {12} case 1 | ||
| 01-O-p10/ 1-2 |
female/ prenatal newborn |
chord blood; PBL | de novo | 47,XX,+r[40%]/ 46,XX[60%] (chord blood); in PBL sSMC in 20% |
r(1)(::p10→q12::) RP11-79E5 (141.9 MB) on 1q present on sSMC |
M-FISH; cep 1/5/19; BACs{42} subcenM like; UPD-test |
Advanced maternal age; normal at birth and at 1 y | {42} case 2 | ||
| 01-O-p11.1/ 1-1 |
male/ prenatal |
AF | de novo | 47,XY,+mar[50%]/ 46,XY[50%] |
min(1)(:p11.1→q11:) | cenM subcenM |
see below | {70} case 01-O-p11.1/1-1 | ||
| Advanced maternal age; no ultrasound abnormalities; child born without abnormalities with 3500g, length 52cm, OFC 35cm, APGAR 9/10/10 | ||||||||||
| 01-O-p11.1/ 1-2 |
male/ adult |
PBL | de novo | 47,XY,+r[70%]/ 46,XY[30%] |
r(1)(::p11→q11::) | M-FISH; cep 1/5/19; BACs{42} subcenM like; UPD-test |
Healthy male; 2 spontaneous abortions in partnership | {42} case 3 {62} case 1 |
||
| 01-O-p11.1/ 1-3 |
female/ adult |
PBL | de novo | 47,XX,+r[40%]/ 46,XX[60%] |
r(1)(::p11→q11::) | M-FISH; cep 1/5/19; BACs{42} subcenM like; UPD-test |
Healthy female; 5 year history of infertility | {42} case 4 {62} case 2 |
||
| 01-O-p11.1/ 2-1 |
female/ prenatal |
AF | de novo | 47,XX,+r[7]/ 46,XX[28] |
r(1)(::p11.1→q21.1::) | cenM subcenM |
Advanced maternal age; no ultrasound abnormalities; child born without abnormalities | {39} {41} case 1-21 |
||
| 01-O-p11.1/ 3-1 |
female/ 31y |
PBL | n.a. | 47,XX,+mar[100%] | min(1)(:p11.1→q12:) | cenM subcenM; UPD-test |
Healthy female; Familial history of repeated abortions | {62} case 3 | ||
| 01-O-p11.1/ 3-2 |
male/ 44y |
PBL | n.a. | 47,XY,+mar[53%]/ 46,XY[47%] |
min(1)(:p11.1→q12:)* | M-FISH; CGH, wcp 1; UPD-test | Healthy male; habitual abortions in his wife (10x) | {67} case 1 | ||
| 01-O-p11.1/ 3-3 |
female/ prenatal |
AF | de novo | 47,XX,+mar[5]/ 46,XX[23] |
min(1)(:p11.1→q12:) aCGH: no centromere-near euchromatin |
cenM subcenM midi; aCGH; UPD-test |
advanced maternal age, repeated abortions, healthy child born, normal at 1 y | {70} case 01- O-p11.1/3-3 {0} |
||
| 01-O-p11.1/ 3-4 |
male/ 44y |
PBL | n.a. | 47,XY,+mar[64%]/ 46,XY[36%] |
min(1)(:p11.1→q12:)* | wcp 1, cep1 | Healthy male; with oligoasthenozoospermia | {64} case 1 | ||
| 01-O-p11.1/ 3-5 |
female/ prenatal |
AF | n.a. | 47,XX,+mar[18]/ 46,XX[37] |
min(1)(:p11.1→q12:) | cenM, subcenM | advanced maternal age, no US abnormalities. child born and normal at 9 months. | {0} provided by Dr. Mehnert, Neu-Ulm, Germany | ||
| 01-O-p11.1/ 3-6 |
female/ 35y |
PBL (EKF- cellbank) |
n.a. | 47,XX,+mar[12]/ 46,XX[8] |
min(1)(:p11.1→q12:) | cenM, subcenM | healthy female, detected due to abortions at age over 35y | {0} provided by Dr. Mau-Holzmann, Tübingen, Germany | ||
| 01-O-p11.1/ 3-7 |
female/ 34y |
PBL | n.a. | 47,XX,+mar[20]/ 46,XX[80] |
min(1)(:p11.1→q12:) | cenM, subcenM | healthy female, detected due to fertility problems | {0} provided by Dr. Wegner, Berlin, Germany | ||
| 01-O-p10/ 1-1 |
male/ prenatal; newborn |
CH; AF; PBL | de novo | only in chorionic cells: 47,XY,+mar[2]/ 46,XY[28] no sSMC in 100 PBL cells postnatally |
min(1)(:p10→q12:) | cenM subcenM; UPD-test |
advanced maternal age and mucoploysaccaridose II with known mutation (c708G>A) in mother; no mar in amnion cells; healthy child born | {0; 70} case 01-O-p10/1-1 | ||
O-Cases with similar imbalances NOT caused by sSMC (O-IMB):
| case no. | gender/ age at diagnosis | studied material |
de novo/ inherited |
GTG-banding result and FISH result incl. grade of mosaicism | test methods |
clinical symptoms | reference | ||
| 01-O IMB q11/ 1-1 |
male/ 9y |
PBL | maternal | 46,XY,dup(1)(q11q22) | CGH, YAC in 1q22 (930F5 - not in UCSC) | detected in child with T-lymphoblastic leukemia; mother an three other family members normal | {53} | ||
O-cases with unclear/insufficient characterization of the sSMC (CO):
| case no. | gender/ age at diagnosis | studied material |
de novo/ inherited |
GTG-banding result grade of mosaicism |
final result of the sSMC | test methods |
clinical symptoms | reference | ||
| 01- CO-1 |
male/ prenatal |
AF | maternal | 47,XY,+mar[100%] | ish mar(1)(D1Z5+) | different FISH-probes: D1Z5; |
Healthy male; mother healthy as well | {9} case 15 | ||
| 01- CO-2 |
female/ prenatal |
AF cell line at ECACC DD0943 |
de novo | 47,XX,+mar[100%] | mar(1) .ish(cep1+;wcp1-) | all centromeric probes; wcp 1; UPD-test | born clinically normal | {4} case 1 {19} case 1 |
||
| 01- CO-3 |
male/ 25y |
PBL | n.a. | 47,XY,+mar[10%]/ 46,XY[90%] |
r(1) | all centromeric probes | born clinically normal; marker detected due to CML disease | {15;16} case 17 | ||
| 01- CO-4 |
male/ 1y |
PBL | de novo | 47,XY,+mar[?%]/ 46,XY[?%] |
dic(1) | all centromeric probes | normal at 1 y | {38} case 7 | ||
| 01- CO-5 |
n.a./ prenatal |
AF | maternal | 47,+mar[?%] | r(1) | n.a. | normal mother, sSMC found prenatally in 2 subsequent pregnancies | {69} 1 case | ||
Cases with clinical findings (W)
| case no. | gender/ age at diagnosis | studied material |
de novo/ inherited |
GTG-banding result grade of mosaicism |
final result of the sSMC | test methods |
clinical symptoms | reference | ||
| 01-W- p2?/ 1-1 |
n.a./ postnatal |
PBL | de novo | 47,+mar[25%]/ 46[75%] |
r(1)(::p2?→q1?::)* size >13.9 MB |
n.a. and subcenM with 3 BACs | mental retardation (mild) |
{51} case 2 | ||
| 01-W- p21.3/ 1-1 |
female/ n.a. |
PBL | n.a. | 47,XX,+mar[100%] | r(1)(::p21.31→q25.2::) 98.25-174.81 MB |
midi; array CGH | Stickler-syndrome like, i.e. dysmorphic face, vision impaired hearing loss, joint problem | {0} provided to Dr. G. Senger, by Dr. Brondum-Nielsen, Denmark} | ||
| 01-W- p21.1/ 1-1 |
moved to 01-U-10 | {22} | ||||||||
| 01-W- p13/ 1-1 ° |
female/ 5y |
PBL | de novo | 47,XX,+r[30%]/ 46,XX[70%] |
r(1)(::p13→q10::)* | see below | mild DD, minor dysmorphism | {8} case B | ||
|
FISH: D1Z1; BAC923C6 in 1p12 and RR6 in 1q12; midi-probe of case D in Ref {8} |
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| 01-W- p13/ 1-2 ° |
female/ 1y |
PBL | de novo | 47,XX,+r[30%]/ 46,XX[70%] |
r(1)(::p13→q10::) | midi; UPD test | see below | {5} case A | ||
|
Born at term after uneventful pregnancy; birth w: 3,800g; at 6y: DD (sitting not before 1y); at 13 y no walking without support); severely MR with autistic symptoms, no speech; general muscular hypotonia in combination with ataxia; growth retardation weight -2 SD, but normal height (+1 SD); dysmorphic face (cleft palate, long face with small, up-slanting palpebral fissures, long nose, small chin, featureless philtrum, micrognathia, high arched palate). |
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| 01-W- p13/ 2-1 ° |
male/ 15m |
PBL | de novo | 47,XY,+r[20]/ 46,XY[80] |
r(1)(::p1?3→q1?1::)* | different FISH-probes: D1Z5, wcp |
see below | {11} | ||
|
Delivery by cesarean section <-- breech position of fetus; born at 36 weeks; birth w: 2,600g; l: 47.5cm; at 1y DD (sitting; standing with support); delay of ~6m in development; dysmorphic face (asymmetric skull with plagiocephaly, flat occiput; double vertex hair whorl, epicantal folds, slight hypertelorism, protuberant eyes); clinodactyly of 4th toes; general hypotonia; anxious and over excitable behavior |
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| 01-W- p13/ 3-1 |
female/ 1w |
AF | de novo | 47,XX,+r[6]/ 46,XX[19] |
r(1)(::p13→q21.3::) | midi | see below | {13} case 3 | ||
|
Prenatal: polyhydramnion and two-vessel umbilical cord; born in week 35, growth retardation, microcephalus (<3rd percentile), normal length; dysmorphic face (mild brachycephaly, small anterior fontanel, micrognathia, cleft palate, abnormal ears); hypoplastic nails; patient died 6 weeks later. |
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| 01-W- p13/ 4-1 |
male/ 15y |
PBL | de novo | 47,XY,+r[13]/ 46,XY[80] |
r(1)(::p13→q23::) | wcp probes 1, 9, 16 | see below | {10} | ||
|
pregnancy complicated by mat. hypertension; birth w: 2,727g; l: 48cm; APGAR 5/10; at birth: bilateral glaucoma; at 4 m: failure to thrive; at age of 23 m no sitting or walking, growth retardation: weight and length <3rd centile; at 3.5y: cataract formation in right eye; at age of 8.5y seizures started; at age of 15y: confined to wheelchair; severe psychomotor retardation; small and short stature; microcephaly; megalocornea; dysmorphic face (up slanted palpebral fissures, short philtrum, cupped ears). |
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| 01-W- p13.3/ 1-1 ° |
male/ 4.25y |
PBL/ buccal mucosa | de novo | 47,XY,+r[7]/ 46,XY[43] (in buccal mucosa 3 signals in 9%) |
r(1)(::p13.3→q10::) | midi; wcp1, cep1, YAC for 1p13.2 | see below | {18} | ||
|
Prenatal: normal in week 20; birth by cesarean section <- breech position + umbilical cord compression in week 42; birth w: 3,025g (10th centile); l: 51cm (50th centile); OFC: 34cm (10-25th centile); APGAR 9/10/-; motor development and global development delayed (walking 3y; no speech up to 3.5y); at 4.25y w 14kg (3rd centile), h 106cm (50th centile); microcephaly; dysmorphic face (myopatic face with open mouth at rest, mild ptosis, mild hypertelorism, slight down-slating palpebral fissures, epicanthic folds, over folded helices with mild ear protrusion); short 5th finger with clinodactyly, congenital hypotonia, hyper extensibility of joints, severely MR, attention deficit disorder, auto aggressive episodes, autistic symptoms. |
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| 01-W- p13.3/ 2-1 |
male/ ~2y |
PBL | de novo | 47,XY,+mar[3]/ 46,XY[14] |
r(1)(::p13.3→q21.2::) 112.16-148.40 MB |
CHG, subcenM, midi, array-CGH | see below | {0} provided by Joana Melo (Coimbra, Portugal) | ||
|
10y: DD and learning difficulties 11y: no DD any more, adequate growth (h: 148.5 cm; w: 44kg; OFC 51.25 cm; 10-25th centile), urethral problems: bilateral vesiculo-uretral reflux, bilateral inguinal hernia + dentition problems. (corrected) |
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| 01-W- p13.3/ 3-1 |
male/ prenatal |
AF | n.a. | 47,XY,+mar[13]/ 46,XY[8] |
mar(1)(:p13.3→?q11.1:)* | aCHG, M-FISH | see below | {74} case 1 | ||
|
amniocentesis due to advanced maternal age; due to sSMC termination of pregnancy at 26 weeks; autopsy: deep set infra-orbital creases, blepharophimosis, hypertelorism, broad nose, long philtrum, big mouth, bilat. camptodactyly, liver hypoplasia |
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| 01-W- p13.3/ 4-1 |
n.a./ prenatal |
fibro (from fetus after TOP) |
de novo | 47,+mar[57%]/ 46[43%] |
r(1)(::p13.3→q1?::)* size 13.7 MB |
n.a. and subcenM with 3 BACs | see below | {51} case 1 | ||
|
IUGR of ~2 weeks, heart defect (single umbilical artery, small echogenic intracardiac focus), no over fetal anomalies noted in ultrasound at 18 2/7 weeks, TOP |
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| *** 01-W- p13.2/ 1-1 ° *** |
male/ prenatal |
AF/ PBL |
de novo | in AF: 48[13]/47[7] PBL: 48,XY,+mar1, mar 2[20]/ 47,XY,+mar1 or 47,XY,+mar2[7]/ 46,XY[3] |
mar1: der(1)(:p13.2→q11:) distal clone in p RP11-315M1 (114.0MB) mar2: der(1)(:p11→q12:) distal clone in q RP11-20J19 (141.3MB) |
different cep probes. different BAC probes | see below | {20} | ||
|
Advanced maternal age and cleft palate prenatal. At term birth; w: 3,230g, unilateral cleft lip and palate, hypoplastic aortic arch, ventricular septal defect, patent ductus arteriousus. |
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01-W- p13.2/ 2-1 |
female/ 10y |
PBL | de novo | 47,XX,+mar[18]/ 46,XX[32] |
r(1)(:p13.2→q23.3:) 112.75-158.6 MB |
SKY, aCGH |
see below | {76} | ||
|
Nomal pregnancy, at 6y: developmental delay, speech delay, unstable gaits, kyphoscoliosis, hyporeflexia, facial asymmetry, round face, depressed nasal bridge, epicantus, dysplastic, lowset ears, hypertelorism, prominent forehead, 5x5cm subcutaneous mass over occipital scalp = dermatofibrosarcome protuberans. weight 50 centile, heigth 85 centile; at 8y seizures, at 10y multiple exostoses over left thigh and osteochondroma |
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| 01-W- p12/ 1-1 |
female/ 3.5y |
PBL | de novo | 47,XX,+r[5]/ 46,XX[45] |
min(1)(:p12→q11:) | cenM subcenM |
see below | {39} {41} case 1-7 |
||
|
Born at term after uneventful pregnancy (at 41 weeks); birth w: 3,035g; l: 47,5cm; OFC: 34cm; hypertonic crisis with cyanosis 48 h after birth, and afterwards alternate hypotonia episodes with irritability crisis. With 3 m w of 4,250 g (5-10th centile), l 38cm (10-25th centile), dysmorphic face (mild facial angioma, low set ears, thin upper lip with a prominent philtrum, blepharophimosis); thin skin with eczemas; DD, psychomotor delay |
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| 01-W- p12/ 2-1 ° |
female/ 1.5y |
PBL | de novo | 47,XX,+mar[15] | min(1)(:p12→q12:) (no telomere signals) |
cenM subcenM telomere-FISH |
psychomotor retardation; dysplasia of the kidney; seizures; retinal bleeding; chronically bronchitis. | {1} case 11 {2} case 5 {39} |
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| 01-W- p12/ 2-2 |
female/ 28y |
PBL | de novo (? father n.a. for study) | 47,XX,+mar[50%]/ 46,XX[50%] |
min(1)(:p12→q12:) | wcp1 subcenM-FISH |
see below
|
{41} case 1-9 | ||
|
During pregnancy kidney problems of the mother; born 6 week preterm; birth w 2,250g; torticollis spasmodicum corrected at 10m; MR, focal epilepsy due to Arnold-Chiari-syndrome since 18m; w at 19y: 93kg = >P97; h: 172cm; OFC: 55.5cm; facial dysmorphism (asymmetry of the skull, hypertelorism, dysmorphic ears); sec. amenorrhea due to climacteric praecox caused by hormonal insufficiency |
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| 01-W- p12/ 2-3 ° |
female/ 1m |
PBL | de novo | 47,XX,+mar[15%]/ 46,XX[85%] |
r(1)(::p12→q12::)* | midi; different FISH-probes: D1Z1; probe BAC923C6 in 1p12 and RR6 in 1q12 |
see below | {8} case D | ||
|
Large protruding tongue, small ventricular septal defect at birth, at age of 2y normal development |
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| 01-W- p12/ 2-4 ° |
female/ 44y |
PBL | de novo (?) | 47,XX,+mar[8]/ 46,XX[13] (at 35y); at 42y mar in only 3/20 cells |
r(1)(::p12→q12::) | cenM subcenM |
see below | {41}case 1-10 | ||
|
Birth w 2,300g, subsequent feeding problems; severe DD: no speech; generalized epilepsy (since childhood); since age of 12y psoriasis vulgaris; short stature (150 cm) microcephaly (HC 48 cm); dysmorphic face (asymmetric, low frontal hairline, ptosis, epicanthic folds prominent lips); mild camptodactyly of the fingers, short toes; has a full range of movements but has difficulty in mobility. CT scan: cortico-subcortical atrophy with wide ventricles and sulci. |
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| 01-W- p12/ 2-5 ° |
male/ 3y |
PBL | de novo | 47,XY,+mar[7%]/ 46,XY[93] |
r(1)(::p12→q12::) | SKY, BAC 923C3 in 1p12 | see below | {50}case 7 | ||
|
Born in week 38 of gestation. Birth w: 2,650g; at 1y mild DD and physical abnormalities; at 2y started walking but not speaking. Dysmorphic face (microcephaly, hypertelorism, almond like palpebral fissure, protruding eyes, anteverted nostrils); brachyclinodactyly of 5th fingers, tapering fingers. |
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| 01-W- p12/ 2-6 ° |
n.a./ n.a. |
PBL | n.a. | 47,+mar[100%] | mar(1)(::p12→q12::)* 120.49-141.48MB |
array-CGH | DD MR; epicantal folds, low set ears, autistic features | {0} provided by Dr. SW Cheung, Houston, USA | ||
| 01-W- p12/ 3-1 ° |
male/ 1m |
PBL | de novo | 47,XY,+mar[80%]/ 46,XY[20%] |
r(1)(::p12~11→q12::)* | wcp 1, centromere-near YACs as specified in {17} | see below | {17} case 2 | ||
|
At birth w: 3,939g, l: 52.5cm, APGAR 7/10; right talipes equinovarus; at 2y hyperactivity, and attention deficit disorder. |
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| 01-W- p12/ 3-2 ° |
male/ 10y |
PBL | de novo | 47,XY,+r[15%]/ 46,XY[85%] |
r(1)(::p12~p11→q12::)* | wcp1, D1Z7 | see below | {21} | ||
|
Born at term after uneventful pregnancy apart from polyhydramnion; excessive drooling ups up to 4y of age; atopic dermatitis, DD in all motor skills, at 10y poor concentration ability and inattentive, dysmorphic face (telecanthus, flat nasal bridge, up slanting palpebral fissures, prominent and swollen eyelids, midface recessed, long philtrum, low-set ears, high arched palate, short neck and low posterior hairline, HC at 98. centile); language delay; mental handicap |
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| 01-W- p12/ 4-1 |
male/ prenatal |
AF | de novo | 47,XY,+mar[13]/ 46,XY[8] mar detected in skin, lung, heart, kidney as well |
inv dup(1)(:q12→p12::p12→q12:)* | midi; subcenM; M-FISH |
see below | {33} | ||
|
Advanced maternal age; normal ultrasound, TOP in 25th week; Autopsy: slight craniofacial dysmorphism, bilateral camptodactyly, rocker bottom feet, but no organ malformation. |
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| 01-W- p12/ 5-1 |
female and male/ postnatal |
PBL | maternal (16% only - mother mildly affected) |
47,+mar[71% or 54%]/ 46[29% or 46%] |
r(1)(::p12→q21.1::) 118.27-146.58MB |
wcp, cep, array-CGH | facial dysmorphism, low weight, camptodactyly of fingers 4 and 5, DD | 73} | ||
| 01-W- p11.2/ 1-1 |
female/ 3.5y |
PBL | de novo | 47,XX,+[10%]/ 46,XX[90%] |
r(1)(:p11.2→q24:)* size 14.2-17.8 MB |
n.a.; subcenM with 3 BACs | see below | {51} case 3 | ||
|
DD; no walking or speaking at 33 months of age, although she does point, smile, and use some signs to communicate; dysmorphic features; strabismus; hyperopia; hydronephrosis; normal growth parameters at 15 and 33 months of age. |
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| 01-W- p11.2/ 2-1 |
male ?/ 7y |
PBL | de novo | 47,+mar[66%]/ 46[34%] |
mar(1)(:p11.2→q1?:) | n.a.; array CGH | see below | {51}case 4 | ||
|
Behavior problems; autistic features; speech delay; mild MR; IQ = 68; at 7 ½ years of age the patient functions at a 5-year-old level. |
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| 01-W- p11.2/ 2-2 |
male/ prenatal |
CH | de novo | 47,XY,+mar[10]/ 46,XY[16] |
mar(1)(:p11.2→q1?:)* | cep; array CGH | see below | {74}case 2 | ||
|
CVS due to cystic hygroma, TOP in week 26; pathology: dolichocephaly, high forehead, nose with large nares, deep set infra-orbital creases, ears not hemmed, 5th toe camptodactyly, long toes and fingers, excess skin. nuchal edema |
||||||||||
| 01-W- p11.2/ 3-1 |
male/ 14m |
PBL | de novo | 47,XY,+r[15%]/ 46,XY[85%] |
r(1)(::p11.2→q12::) BAC-breakpoint mapping: 120.84MB and 141.6 MB |
M-FISH; cep 1/5/19; BAC probes as specified {42} subcenM like; UPD test | see below | {42} case 1 | ||
|
Caesarian section at 32 weeks after IUGR; APGAR 8/9; at birth: w 910g (<3rd centile), l 34 cm (<3rd centile), OFC 27 cm (5th centile); at birth severe respiratory distress. At 14m all values persisted <3rd or ~5th centile. Psychomotor retardation, facial dysmorphism (face triangular with high forehead, frontal bossing, sparse eyebrows, long eyelashes, ectropion, anteverted nostrils, long philtrum, thin upper lip, high-arched palate, and small pointed chin, ears low-set with flat antihelices), body asymmetry and hypoplastic right side; pectus excavatum; cryptorchidism. |
||||||||||
| 01-W- p11.1/ 1-1 |
female/ 8y |
PBL | de novo | 47,XX,+mar[8]/ 46,XX[12] |
min(1)(:p11.1→q12:) | cenM subcenM |
see below | {41} case 1-14 | ||
|
Born at 7th month; w: 2,350g, l 46cm; twin brother compared to which patient is retarded; no malformations apart from dysmorphic face and mild psychomotor retardation |
||||||||||
| 01-W- p11.1/ 1-2 |
female/ 2y |
PBL | de novo | 47,XX,+mar[60%]/ 46,XX[40%] |
min(1)(:p11.1→q12:) | cenM subcenM |
see below | {0} provided by Dr. Anikó Ujfalusi, Hungary | ||
|
Born in 38. week after normal pregnancy; w: 3,050g; at 8 months: psychomotor DD; at 12 month: sitting, at 14 month: corpus callosum agenesis (MRI); at 27 months standing, MR; dysmorphic face (prominent forehead, irregular hair line, epicanthus on both side, markedly broad nasal root); clinodactyly of fifth finger, syndactyly between toes II and III, lateral deviation of feet and toes. Family history: Mother with cleft lip at birth. Father: severe CMV infection at the time of conception, the antibody titer of the mother during the pregnancy was normal/borderline |
||||||||||
| 01-W- p11.1/ 2-1 ° |
male/ 1m |
PBL | de novo | 47,XY,+r[48]/ 46,XY[52] |
r(1)(::p11.1→q21.1::) | cenM subcenM |
see below | {41} case 1-15 | ||
|
Born at 36 week by cesarean section; podalic presentation; w: 2,240g (3-25th centile), l: 43.5 cm (10-25th centile), OFC: 31 cm (10-25th centile). dysmorphic face (repaired cleft lip, big and low-set ears, microretrognatia); angioma in the back. |
||||||||||
| 01-W- p11.1/ 2-2 ° |
male/ 1y |
PBL | de novo | 47,XY,+r[5]/ 46,XY[45] |
r(1)(::p11.1→q21.1::) | cenM subcenM MCB |
see below | {2} case 4 {3} case 4 |
||
|
Clinical signs similar to DiGeorge syndrome, however, no microdeletion 22q11.2 ; DiGeorge syndrome includes: heart defect, immune deficiency, dysmorphic face |
||||||||||
| 01-W- p11.1/ 2-3 ° |
male/ 1w? |
PBL | de novo | 47,XY,+r[50%]/ 46,XY[50%] |
r(1)(::p11.1→q21.1::)* | wcp 1, centromere-near YACs as specified in {17} | see below | {17} case 1 | ||
|
born with w: 2,960g, l: 49.5cm HC: 32cm; resuscitation needed postnatal due to severe respiratory distress; dysmorphic face (long philtrum, low hairline; high arched palate); limbgridle muscular hypotrophy; hypospadias with undescended testicles; bilateral club-foot; intestinal occlusion due to volvulus; infant died at 22 m. |
||||||||||
| 01-W- p11.1/ 2-4 ° |
female/ 2m |
PBL | de novo | 47,XX,+mar[30%]/ 46,XX[70%] |
min(1)(:p11.1→q11:)[50%]/min(1)(:p11.1→q21.1:)[50%] | cenM, subcenM | see below | {0} provided by MUDr. Jana Lastuvková, Ústi nad Labem, Czech Republic | ||
|
IUGR; birth at 29th week due to anhydramnion; congenital malformations: hypertrophic cardiomypathy, small mandible, dysmorphic face (dysplastic low set ears), limited joint movement; child died at 2 months of age |
||||||||||
| 01-W- p11.1/ 3-1 ° |
male/ prenatal |
AF and various tissues (EKF- cellbank) |
de novo | 47,XY,+r[8]/ 46,XY[52] sSMC present in 13 to 60% of studied fetal tissues |
r(1)(::p11.1→q22::) array-CGH: 105.98-188.41MB r(1)(::p21.1→q31.1::) |
centromeric-probes, subcenM, MCB array-CGH |
see below | {0}{43} case 1 {47} |
||
|
Heart defect detected in ultrasound - coarctation of aorta in week 20; holes in wall between chambers in week 24; TOP, postmortem report: no external or intracranial anomalies, apparently normal cardiac connections with probable tubular hypoplasia of aortic arch and coarctation at ductal level (weight: 1,975g, OFC: 31.5 cm); horseshoe kidney. |
||||||||||
| 01-W- p11/ 1-1 ° |
female/ 3y |
PBL | de novo | 47,XX,+r(1)(::p11→q22::)[15]/ 47,XX,+r(1)(::p11→q22::q22→p11::)[45] 46,XX[340] |
n.a. | n.a. | see below | {29} | ||
|
Pregnancy complicated with high fever of unknown origin in 3rd month; delivery at term by cesarean section because of pelvic presentation; w: 2,900g; walking at 30m; at 37m height between 80.-90. centile, OFC at 60. centile, weight 17.5kg; dysmorphic face (round face, very low hair line, frontal hypertrichosis, thin curved eyebrows, slanting palpebral fissures, short wide nasal bridge, cavernous hemangiomas on right nasal side, anteverted nostrils, long wide philtrum, fish shaped mouth); short hands an feet, bilateral clinodactyly 5 |
||||||||||
| 01-W- p11/ 2-1 |
male/ prenatal; newborn |
AF and PBL | de novo | 47,XY,+mar[19]/ 46,XY[1] in PBL mar in 26/30 metaphases |
r(1)(:p11→q11:) | all centromeric probes, telomeric probes | see below | {35} case 6 | ||
|
Advanced maternal age; born at term by cesarean section and phenotypically normal. At 2 years was noted to have mild speech delay; had a raised strawberry hemangiomas in center of chest, but otherwise phenotypically normal. |
||||||||||
| 01-W- p11/ 3-1 |
female/ 2y |
PBL | n.a. | 47,XX,+mar[35]/ 46,XX[15] |
min(1)(:p11→q11:) | midi; subcenM |
clinically abnormal | {0} provided by Dr. Schüler, Aachen, Germany | ||
| 01-W- p11/ 4-1 ° |
male/ 2y |
PBL | de novo | 47,XY,+mar[12]/ 46,XY[48] |
r(1)(::p11→q23.3::) | cenM; subcenM |
see below | {0} provided by Dr. Kowalska-Pawlak, Poland | ||
|
at 2 y: facial dysmorphism, MR, complex congenital malformations, tetralogy Fallot, cryptorchism, psychomotor retardation |
||||||||||
| 01-W- p10/ 1-1 ° |
female/ 13y |
PBL | de novo | 47,XX,+r[35%]/ 46,XX[65%] |
r(1)(::p10→q22::q22→q21.3::)* | YACs as described in {26} | see below | {26} | ||
|
Born at term after normal pregnancy; birth w: at 25. centile, l: at 10. centile, OFC: <3rd centile, APGAR 8/10/10; microcephaly, dysmorphic face (asymmetric and abnormal low set ears, broad nasal bridge, high arched palate, micrognathia); pilonidal dimple; cardiac murmur; cardiomegalie; chest asymmetry, VSD; psychomotor delay; growth retardation; kyphoscoliosis; at 15y microcephaly, dysmorphic face (low frontal hairline, down-slanting palpebral fissures, broad nasal bridge, large nose, short neck), hirsutism; MR; no speech. |
||||||||||
| 01-W- p10/ 1-2 ° |
female/ 3.5y |
PBL | de novo | 47,XX,+r[8]/ 46,XX[92] |
r(1)(::p10→q21::p10→q21: :p10→q21::)* | YACs and BACs as described in {30}; midi; CGH; UPD test | see below | {30} | ||
|
Born at term after normal pregnancy; Birth w, l and OFC on the 3rd centile. At 1y statomotoric retardation; muscular hypotonia; microcephaly; dysmorphic features (mild high-arched palate, epicanthal folds); sitting at 1y. Up 2y no walking or standing upright without support; lack of language development, audiological tests normal. At 3.5y language and motor development delay; able to walk but used no language. Head circumference, height and weight between the 3rd and 10th centile. Motor skills and social interaction were decreased without autistic symptoms plus an attention deficit disorder. At seven years, progressed due to a special kindergarten program and showed age-matched social interaction. |
||||||||||
| 01-W- p10/ 2-1 ° |
female/ 4.3y |
PBL | de novo | 47,XX,+mar[>95%/ 47,XX,+?r[~2%] 46,XX[<3%] |
min(1)(:p10→q12::q12→q21.2: :q21.1~21.2→q21.1:)* | YACs and BACs as described in {34}; midi | see below | {34} | ||
|
Born at term after normal pregnancy; birth w and l 10th centile, OFC >20th centile; dysmorphic face (asymmetry, hypertelorism, low-set ears, micrognathia, broad nasal bridge, short philtrum, dimple between lower lip and chin, high palate, prominent occiput); simian crease; sacral dimple; at 9 m DD of at least 2 months but no growth retardation; psychomotor developmental delay of ~1y; at 5.5y her language abilities had improved, she was able to form whole sentences, but she had difficulties to concentrate |
||||||||||
W-Cases with similar imbalances NOT caused by sSMC (W-IMB):
| case no. | gender/ age at diagnosis | studied material |
de novo/ inherited |
GTG-banding result and FISH result incl. grade of mosaicism | test methods |
clinical symptoms | reference | ||
| 01-W- IMB- q11/ 1-1 |
male/ postnatal |
PBL | de novo | 46,XY,dup(1)(q12q23) | n.a. | Severely retarded, psychomotor development, growth retardation, and multiple congenital malformations. | {57} | ||
| 01-W- IMB- q11/ 2-1 |
female/ 3y |
PBL | de novo | 46,XX,dup(1)(q11q25) | no FISH | resembling Proteus syndrome, i.e. skin overgrowth and atypical bone development. | {54} | ||
| 01-W- IMB- q12/ 1-1 |
female/ 1m |
PBL | de novo | 46,XX,dup(1)(q12q21) | SKY; BAC-FISH | see below | {63} | ||
| Suggestive of Turner syndrome; dysmorphic face (prominent nose, low-set, crumpled ears, slightly high palate); short neck,; high-pitched cry; mild micrognathia; hypoplastic labia majora, somewhat deep palmar creases. | |||||||||
| 01-W- IMB- q12/ 2-1 |
female/ 16y |
PBL | de novo | 46,XX,der(X)ins(X;1)(q21;q12q21) | wcp FISH | Behavior and learning problems - the inserted part is subject to random X-inactivation | {65} | ||
| 01-W- IMB- q12/ 2-1 |
female/ 18y |
PBL | de novo | mos 46,XX,dup(1)(q12q22)/ 46,XX |
n.a. | Mentally handicapped. | {56} | ||
| 01-W- IMB- q12/ 3-1 |
female/ postnatal |
PBL | de novo | 46,XX,dup(1)(q12q21.3) | wcp 1 | see below | {59} | ||
| Developmental delay, macrocephaly, dysmorphic face (asymmetry, small down turned palpebral fissures, high and narrow palate, micrognathia), short neck, a heart defect, and unilateral renal agenesis. | |||||||||
| 01-W- IMB- q12/ 4-1 |
female/ postnatal |
PBL | de novo | mos 46,XX,dup(1)(q12q23)/ 46,XX |
n.a. | multiple clinical abnormalities | {55} | ||
| 01-W- IMB- q12/ 5-1 |
male/ postnatal |
PBL | de novo | 46,XY,dup(1)(q12q25) | wcp 1 | see below | {58} | ||
| Excessively wrinkled skin, mild micro/brachycephaly with mild hydrocephalus and slightly small temporal lobes, apparently low-set ears, retro/micrognathia and cleft soft palate (Pierre-Robin anomaly,) patent ductus arteriousus and foramen ovale, pulmonary hypoplasia, eventration of the left hemidiaphragm, right cryptorchidism, a sacral dimple, flexion contractures of fingers and knees, and equinovarus deformities of both feet | |||||||||
W-cases with unclear/insufficient characterization of the sSMC (WO):
| case no. | gender/ age at diagnosis | studied material |
de novo/ inherited |
GTG-banding result grade of mosaicism |
final result of the sSMC | test methods |
clinical symptoms | reference | ||
| 01- CW-1 |
male/ 2.5y |
PBL | de novo | 47,XY,+mar[70%]/ 46,XY[30%] |
r(1)(::q11→p11.2::1?::) | FISH with all centromeric probes: D1Z1; BAC923C6 in 1p12, RR6 in 1q12; midi-probe of case D {8} |
see below | {7} case 1 {8} case C |
||
| Delayed speech and dysmorphic face (long face, ear-lobule creases, slightly up-slanting palpebral fissures, long nose with broad nasal bridge, mild micrognathia), bilateral clinodactyly of the 5th fingers and inverted nipples. | ||||||||||
| 01- CW-2 |
male/ 8y |
PBL | de novo | 47,XY,+mar[30%]/ 46,XY[70%] |
r(1)(::q11→p11.2::1?::) | different FISH-probes: D1Z1; BAC923C6 in 1p12, RR6 in 1q12; midi-probe of case D{8} |
minor dysmorphic features, moderately intelligent at age of 12y | {8} case A | ||
| 01- CW-3 |
female/ 7.5y |
PBL | de novo | 47,XX,+mar[11]/ 46,XX[49] |
r(1)(wcp1+,D1Z1/D5Z2/D19Z3+) | wcp1; cep1/5/19 | see below | {0} provided by Dr. Peter Kannu (Auckland, New Zealand) | ||
| Mild intellectual disability; height 75th centile, weight 97th centile, head circumference 2nd centile; dysmorphic face (brachycephaly, wide & depressed nasal bridge, epicanthus, bilateral ptosis, hypermetropia); hypotonic, generalized hypermobility; moderate bilateral hearing loss of high frequency. | ||||||||||
| 01- CW-4 |
female/ 79y |
PBL | de novo | 47,XX,+mar[3]/ 46,XX[50] |
r(1)(wcp1+) | wcp1 | see below | {32} | ||
| Born at term (weight: 3,150g = 25th centile, OFC 31 cm = <10th centile), seizures from 4 months of age; at 2y no speech, gross motor delay, dysmorphic face (brachycephaly, asymmetric epicanthic folds, mild hypertelorism, thick bushy eyebrows, brachycephaly); at 5y walking but no speech; at 9y still speech and gross motor delay, epilepsy and behavior similar to Rett-syndrome. | ||||||||||
| 01- CW-5 |
male/ 5y |
PBL (EKF- cellbank) |
paternal ? mar in 2/50 metaphases |
47,XY,+mar[17]/ 46,XY[3] |
min(1) no centromere-near euchromatin detectable |
cenM; aCGH | Clinically abnormal; suspicion of fra(X) syndrome, developmental delay. | {0} provided by Dr. Mehnert (Neu-Ulm, Germany) | ||
| 01- CW-6 |
male/ prenatal |
AF | de novo | 47,XY,+mar[13]/ 46,XY[8] |
mar(1) 'pericentric region of 1p and 1q' | M-FISH, wcp 1, subtel 1p and 1q, midi | see below | {44} | ||
| Advanced maternal age; TOP; autopsy in week 25 revealed slight craniofacial dysmorphism, bilateral campodactylia, rocker bottom feet, no organ malformations. | ||||||||||
| 01- CW-7 |
male/ 10y |
PBL | n.a. | 47,XY,+mar[32%]/ 46,XY[68%] |
r(1) .ish (wcp+, D1Z1-) | wcp1; cep1 | Mentally retarded without dysmorphic features. | {64} case 2 | ||
| 01- CW-8 |
n.a./ prenatal |
AF | de novo | 47,+mar[38%]/ 46[62%] |
r(1) | wcp1; cep1 | Sonographic malformations: IUGR, TOP. Fetopathology: Growth failure, hypotrophic placenta. | {66} case 11 | ||
Cases with unclear clinical correlation (U)
| case no. | gender/ age at diagnosis | studied material |
de novo/ inherited |
GTG-banding result grade of mosaicism |
final result of the sSMC | test methods |
clinical symptoms | reference | ||
| 01- U-1 |
female/ 13y |
PBL | de novo | 47,XX,del(18)(q22),+mar[25%]/ 46,XX,del(18)(q22)[75%] |
r(1)(:p?11.2→q?21.1:)* | radioactive ISH; satellite II probe for chr. 1 | see below | {6} case 1 | ||
| Normal pregnancy and delivery; At age of 13: microcephaly, short stature, moderately severe mental retardation, myopia, dysmorphic facial features, congenital nystagmus spina bifida occulta of S1; in the past: bilateral vesicoreteric reflux, chronic serous otis media. | ||||||||||
| 01- U-2 |
see mult 2-11 | |||||||||
| 01- U-3 |
n.a./ n.a. |
n.a. | n.a. | 47,+mar[?%] | mar(1) | centromeric probes | no info available | {46} 1 case | ||
| 01- U-4 |
female/ prenatal |
AF | de novo | 47,XX,+mar[46]/ 46,XX[8] |
r(1)(:p11→q11:) | all centromeric probes, telomeric probes | see below | {35} case 8 | ||
| Amniocentesis due to a positive screen on expanded AFP for trisomy 21 with an estimated risk of 1: 42; ultrasound at 22 4/7 weeks gestation was normal. The patient was lost to follow-up. | ||||||||||
| 01- U-5 |
female/ prenatal |
CH | de novo | 48,XX,+mar,+mar[2]/ 47,XX,+mar[28]/ 46,XX[20] mar only in long term culture of CH; not in AF not in PBL |
min(1)(:p11→q12:) 3 variants in size of 1q12 | cenM; subcenM; UPD test |
see below | {0} provided by Dr. A. Dufke, Tübingen, Germany | ||
| clinically abnormal in ultrasound; plexus choroideus cysts, hypoplastic cerebellum, conspicuous finding for heart; marker only in CV, not in amniocytes and not in blood, postnatally. Ultrasound-abnormalities were detected, postnatal suspected to suffer from Aicardi-syndrome. | ||||||||||
| 01- U-6 |
male/ prenatal |
AF | de novo | 47,XY,+mar[8]/ 46,XY[22] |
r(1)(::p21→q21::) | cep probes; SKY, midi | see below | {48} | ||
| prenatal diagnosis due to advanced maternal age. No ultrasound abnormalities, TOP in week 23 of gestation. In autopsy no abnormalities detected. | ||||||||||
| 01- U-7 |
female/ prenatal |
AF | de novo | 47,XX,+mar[7]/ 46,XX[21] |
r(1)(::p11.1→q21.1::) | centromeric probes; RP5-940; AL157950; RP11-35B4; AL359093); UPD test |
no clinical information available | {40} case 34 | ||
| 01- U-8 |
see mult 2-25 | |||||||||
| 01- U-9 |
female/ prenatal |
AF | de novo | 47,XX,+mar[8]/ 46,XX[15] |
min(1)(:p11.1→q21.1:)[19]/ min(1)(:p11.1→q21.1:)x2[3] |
cenM; subcenM; UPD test | advanced maternal age, no US abnormalities, TOP | {0} provided by Dr. Hickmann (Düsseldorf, Germany) | ||
| 01- U-10 |
female/ 6y |
PBL | de novo | 47,XX,+mar[14]/ 46,XX[26] |
r(1)(::p21.1→q12::) mat UPD 1 |
midi; telomeric probes; UPD test | see below | {22} | ||
| Born at term after uneventful pregnancy; birth weight: 2,500g; length: 49cm; OFC: ?; at 6y: mental retardation; height: normal; weight normal; HC 44cm (<3rd centile); dysmorphic face (additionally temporal narrowing, downward slanting palpebral fissures, long eyelashes, high palate, pointed chin, low set, dysplastic ears); hip dysplasia, tapering fingers with clinodactyly of fingers 2, 4, 5. | ||||||||||
| 01- U-11 |
male/ prenatal |
AF | de novo | 47,XY,+mar[?%]/ 46,XY[?%] |
mar(1) | SKY | n.a. | {75} case F0414116 |
||
Cases with neocentromeres (N)
| case no. | gender/ age at diagnosis | studied material |
de novo/ inherited |
GTG-banding result grade of mosaicism |
final result of the sSMC | test methods |
clinical symptoms | reference | ||
| 01-N- p32/1-1 |
see McCl-01-N-p32/1-1 | {24; 25; 31; 36; 52} | ||||||||
| 01-N- p22/1-1 |
male/ prenatal |
AF | de novo | 47,XY,+mar[?%]/ 46,XY[?%] |
r(1)(::p22→p21::) | CGH | see below | {45} case 14 | ||
| Enhanced nuchal translucency (>4mm); in 24th week intrauterine fetal atrophy and mild features of DD; in autopsy no congenital defects detected. | ||||||||||
| 01-N- q21/1-1 |
n.a./ prenatal |
AF | de novo | 47,+mar[?] | r(1)(::q21→q22::) | centromeric probes; SKY? | see below | {37} case 1 {52} | ||
|
Intrauterine fetal atrophy in week 24; TOP; autopsy confirmed mild intra-uterine growth retardation |
||||||||||
| 01-N- q23/1-1 |
see McCl-01-N-q23/1-1 | {23; 31; 36; 52} | ||||||||
| 01-N- qt23~24/ 1-1 |
female/ 2.5y |
PBL/ bone marrow |
de novo acquired |
51,XX, +8,+8,+21,+21,+mar |
inv dup(1)qter→q23~24: :q23~24→q43→qter) |
M-FISH, MCB | see below | {71} | ||
|
normal girl suffering from AML-M5a at age of 2 y --> for larger neocentric marker in non-Hodgkin lymphoma see Ref {72} |
||||||||||
01-N- q32/ 1-1 |
female/ 9m |
PBL | de novo | 47,XX,del(1q32),+mar(:1q32→qter) possibly inv dup |
n.a. | n.a. | see below | {28; 52} | ||
| At month 3 of pregnancy mother had a virus infection; at month 6 she was treated for abortus imminens; birth at end of month 8; w: 1900g, l: 43cm, respiratory distress, failure to thrive; At 9m MR, congenital hydrocephalus, VSD, abnormal immunoglobulin. | ||||||||||
| 01-N- q43/ 1-1 |
male/ prenatal |
AF | de novo | 47,XY,+mar[50%]/ 46,XY[50%] |
r(1)(::q43→q44::) | midi, 11 centromeric probes; | see below | {27} case 1; {40} case 13 {31; 36; 52} | ||
|
Advanced maternal age and anxiety; no ultrasound abnormalities; birth by cesarean section, due to cardiac rhythm disturbances; child normal at 6m |
||||||||||
N-Cases with similar imbalances NOT caused by sSMC (N-IMB):
| case no. | gender/ age at diagnosis | studied material |
de novo/ inherited |
GTG-banding result and FISH result incl. grade of mosaicism | test methods |
clinical symptoms | reference | ||
| 01-N- IMB- q32/ 1-1 |
male/ postnatal, infant |
AF | de novo | 46,XY,dup(1)(q32q44) | different FISH-probes CGH | {60} | |||
| 01-N- IMB- q32/ 1-2 to 1-11 |
further comparable cases - for review see {61} |
{61} | |||||||
| 01-N- IMB- q32/ 2-1 |
female/ postnatal, infant |
PBL | de novo | 46,XX,trp(1)(q32q44) | different FISH-probes; array-CGH | {68} | |||