Postnatal clinical and pathological correlation of sonographically ide
ntified genital malformations in 17 fetuses was undertaken to determin
e the outcome of these findings. Diagnoses confirmed at autopsy or by
postnatal examination and surgery included male (XY) pseudohermaphrodi
tism in 2 cases, hypospadias with chordee in 3, microphallus in 2, clo
acal anomaly in 2, congenital adrenal hyperplasia in 3, penoscrotal tr
ansposition in 2, intra-abdominal testes in 1, megalourethra in 1 and
cloacal exstrophy variant in 1. Additional abnormalities included cong
enital heart defects, cleft palate, and renal, anorectal, cranial and
cerebral malformations. Four fetuses with a sonographically abnormal a
ppearing phallus were found to have an endocrine disorder (3 congenita
l adrenal hyperplasia and 1 panhypopituitarism). Outcomes included 2 a
bortions and 1 neonatal death with the remaining neonates undergoing m
edical and reconstructive treatment. Prenatal detection of genital abn
ormalities can be helpful in evaluating those fetuses with severe mult
i-system anomalies as well as lesions more amenable to correction in t
he neonatal period. Detection is particularly important in neonates wi
th endocrine disorders, and complex genitourinary and anorectal malfor
mations.