The phenotype in placental trisomy 7.
Trisomy 7, in mosaic state, was identified at chorionic villus sampling. The pregnancy was closely followed, and proceeded uneventfully. Mosaic trisomy 7 was confirmed in the term placenta, the organ having no structural abnormalities; the karyotype of the phenotypically normal baby was 46,XY. Trisomy 7, mosaic or nonmosaic, detected at chorionic villus sampling in an ultrasonographically normal pregnancy, appears typically to be associated with a normal fetal karyotype, and placental growth, structure, and function are not discernibly compromised.
Watt
A J
AJ
Department of Pathology Services, Dunedin Hospital, New Zealand.
Devereux
F J
FJ
Monk
N A
NA
Myers
C J
CJ
Gardner
R J
RJ
D000328:Adult; D015193:Chorionic Villi Sampling; D002897:Chromosomes, Human, Pair 7; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010641:Phenotype; D010920:Placenta / Q000473:pathology; D011247:Pregnancy; D014314:Trisomy