A phenotypically normal liveborn male after prenatal diagnosis of trisomy 20 mosaicism.
We report on a case of prenatally diagnosed trisomy 20 mosaicism. Conventional cytogenetic analysis and fluorescence in situ hybridization (FISH) using a chromosome 20 specific probe were performed on the lymphocytes and extra-embryonic tissues after birth. All of them revealed normal karyotypes. The baby is developing normally at the age of 2 years.
Hayashi
S
S
Department of Obstetrics and Gynecology, Hiroshima University School of Medicine, Japan.
Miharu
N
N
He
H
H
Honda
H
H
Samura
O
O
Nakaoka
Y
Y
Ohama
K
K
D000328:Adult; D002890:Chromosomes, Human, Pair 20; D005260:Female; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007231:Infant, Newborn; D007621:Karyotyping; D008297:Male; D009030:Mosaicism; D010641:Phenotype; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014314:Trisomy