ChromosOmics - Database

Icon by Leon Liehr                   

                                                  CHROMOSOME #1 -                                                 
NEOCENTRIC
 Specific PATIENTINFORMATION for sSMC(1)

Cases without clinical findings
Similar imbalances – no sSMC
Cases with clinical findings
Similar imbalances – no sSMC
Cases without clear clinical correlation
Cases with discontinous sSMC
Cases with complex sSMC
Cases with UPD and sSMC
Cases with neocentromeres
Similar imbalances
Tumor
DISCLAIMER
In general 70% of sSMC carriers are clinically normal. The figures listed above

are based on the bias, that mainly clinically aberrant cases are studied and reported in literature!


UPD (uniparental disomy) cases: UPD(1)mat UPD(1)pat UPD(1)mat or pat

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
01-
N-

p22/
1-1
male/
prenatal
AF de novo 47,XY,+mar[?%]/
46,XY[?%]
r(1)(::p22p21::)
CGH Enhanced nuchal translucency (>4mm); in 24th week intrauterine fetal atrophy and mild features of DD; in autopsy no congenital defects detected. {45} case 14
01-
N-

p21.1/
1-1
male/
postnatal
PBL n.a. 47,XY,+mar[80%]/
46,XY[20%]
r(1)(::p21.1q21.3::)
aCGH (hg19): 96.42-99.98
aCGH; midi, rev. FISH mental retardation {86}
01-
N-

q21/
1-1
n.a./
prenatal
AF de novo 47,+mar[?] r(1)(::q21q22::) centromeric probes; SKY? Intrauterine fetal atrophy in week 24; TOP; autopsy confirmed mild intra-uterine growth retardation {37} case 1 {52}
01-
N-

q23/
1-1
see McCl-01-N-q23/1-1
01-
N-

q32/
1-1
see PsMcCl-01-N-p32/1-1
01-
N-

q43/
1-1
male/
prenatal
AF de novo 47,XY,+mar[50%]/
46,XY[50%]
r(1)(::q43q44::) midi, 11 centromeric probes Advanced maternal age and anxiety; no ultrasound abnormalities; birth by cesarean section, due to cardiac rhythm disturbances; child normal at 6m {27} case 1; {40} case 13 {31; 36; 52; 80}

Cases with neocentromeres (N) - TUMOR

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-

qt23~24/
1-1
female/
2.5y

PBL/
bone marrow
de novo
acquired
51,XX,
+8,+8,+21,+21,+mar

inv dup(1)qterq23~24:
:q23~24
q43qter)
M-FISH, MCB normal girl suffering from AML-M5a at age of 2 y → for larger neocentric marker in non-Hodgkin lymphoma see Ref {72} {71}

N-Cases with similar imbalances NOT caused by sSMC (N-IMB):

case no.
gender/
age at diagnosis

studied
material

de novo/
inherited

GTG-banding and final FISH result 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 DD; MR {60}
01-
N-
IMB-
q32/
1-2 to
1-11
further comparable cases
- for review see {61}
01-
N-
IMB-
q32/
2-1
female/
postnatal, infant
PBL de novo 46,XX,trp(1)(q32q44) different FISH-probes; array-CGH DD, MR {68}