[Hepatic cyst in a newborn infant].

The authors report on a case of hepatic cyst with neonatal diagnosis. The cyst resulted in neonatal respiratory distress leading to emergency surgery (partial cystectomy). Histological examination revealed the presence of a cystic hamartoma. This cases provides the basis for a discussion on the diagnosis of a neonatal abdominal cystic tumor and the nature of the hepatic cyst in the neonate.