Symmetrical upper limb peromelia and lower limb phocomelia associated with a de novo apparently balanced reciprocal translocation: 46,XX,t(2; 12)(p25.1;q24.1).
We report a female fetus of 20 weeks gestation with severe symmetrical deformity affecting all four limbs. These deformities were unusual in that there was upper limb peromelia and lower limb phocomelia. No additional major malformations were identified on postmortem examination. In particular there was no evidence of splenogonadal fusion or micrognathia and hypoglossia. The limb malformations in this case are associated with a de novo apparently balanced reciprocal translocation 46,XX,t(2;12)(p25.1;q24.1). The cytogenetic features of Roberts-SC phocomelia syndrome were not detected. Unfortunately, the fibroblast line died and no FISH or DNA analysis could be carried out. In spite of this, the case is presented as it may be useful to other researchers in the selection of candidate genes for mendelian forms of peromelia and phocomelia.
Murray
R S
RS
South East Scotland Cytogenetics Service, Western General Hospital, Edinburgh, UK.
Keeling
J W
JW
Ellis
P M
PM
FitzPatrick
D R
DR
D000649:Amniocentesis; D002871:Chromosome Banding; D002881:Chromosomes, Human, Pair 12; D002889:Chromosomes, Human, Pair 2; D004480:Ectromelia / Q000196:embryology / Q000235:genetics*; D005260:Female; D005333:Fetus / Q000002:abnormalities; D006801:Humans; D007621:Karyotyping; D038061:Lower Extremity Deformities, Congenital / Q000196:embryology / Q000235:genetics; D011247:Pregnancy; D014178:Translocation, Genetic; D038062:Upper Extremity Deformities, Congenital / Q000196:embryology / Q000235:genetics