Acute polyhydramnios associated with fetal hepatoblastoma.

A 28-yr-old gravida II mother presented at 29 wk gestation with acute polyhydramnios. The most common causes for polyhydramnios were excluded and onset of preterm labor at 31 wk prevented further studies. Tocolysis failed and a severely asphyxiated boy was born. He had a very distended abdomen with a 7 cm hepatomegaly and was in shock. No other physical abnormalities were found. The child died 15 min after birth. At post mortem examination a fetal type hepatoblastoma was detected. Duodenal obstruction due to the liver tumor might have caused the polyhydramnios.