Adrenal hemorrhage in the newborn with evidence of bleeding in utero.

A case is reported of adrenal hemorrhage in a newborn with evidence of bleeding while in utero. The patient had a large cystic mass on ultrasound at 36 weeks of gestation. Abdominal computerized tomography after birth also revealed the cystic mass above the left kidney, which became smaller with peripheral calcification when he was 5 months old. Thus, adrenal hemorrhage was presumed. The cystic mass had disappeared on followup ultrasound when the patient was 8 months old. This case suggests that adrenal hemorrhage can occur even before delivery.