Congenital solitary cysts of the liver and spleen.

Three symptomatic cases of congenital solitary cyst are reported, one in the liver and two in the spleen. Recurrence of the hepatic cyst after partial excision and drainage was complicated by fistula formation between the cyst and the duodenum. The fistula was successfully closed at a second operation. Calcification of the cyst wall occurred in one of two epithelial cysts of the spleen in young women, which were treated by splenectomy. Besides their rarity, congenital solitary cysts of the liver and spleen have several other features in common. Isotopic and ultrasonic scanning assist diagnosis in both conditions.