Calcified portal vein thromboemboli in infants: radiography and ultrasonography.

Calcified portal vein thromboemboli (CPVT) in six neonates are reported. Three of the infants had multiple chromosomal abnormalities. Ultrasonography was performed in one patient to confirm the intrahepatic location of the calcification. CPVT, which are usually incidental observations on abdominal radiographs in neonates, should be considered in the differential diagnosis of calcifications limited to the hepatic area. These lesions are usually peripheral, and seem to be associated with multiple anomalies in infants. Ultrasonography is useful in demonstrating the intrahepatic and peripheral location of these calcifications.