Antenatal ultrasonographic features of fetal giant hemangiolymphangioma.

A giant multiseptate cystic mass covering the whole left hemitruncus of fetus was detected by ultrasonography at 23 weeks of gestation. Color and pulsed Doppler ultrasonography revealed marked blood flow in the mass. No other anomaly or chromosomal abnormality was recognized. Although the cystic lesion increased in size with advancing gestation a male infant weighing 4096 g was delivered in good condition at term. Histological examination of the lesion demonstrated hemangiolymphangioma with hyperplasia of both capillaries and lymphoducts. The infant was treated effectively with OK-432 and interferon-alfa-2a.