Persistent Cloaca

Abstract

Hydrometrocolpos is a rare congenital disorder in which excessive mucus secretions accumulate from a genital tract obstruction resulting in cystic dilatation of the vagina and uterus. The spectrum of hydrometrocolpos is broad, ranging from mild cases undetected until adolescence to more severe conditions described prenatally as a large pelviabdominal cystic mass. The authors describe the prenatal sonographic detection of a double cystic pelvic mass subsequently proven to be hydrometrocolpos in a fetus with marked ascites, pyelocaliectasis, pulmonary hypoplasia, and uterine duplication.