Fetal and neonatal liver tumours.

Liver tumours are rare in children and account for about 5% of all tumours in the fetus and newborn. The most frequently occurring are benign vascular tumours and mesenchymal hamartomas although malignancy in the form of hepatoblastoma is a possibility. While the diagnosis can be suspected antenatally (by ultrasound and MR scan), a precise diagnosis is often difficult due to the complexity of the tumours. Inutero development of such tumours may be associated with polyhydramnios, fetal hydrops and extreme cases the maternal mirror syndrome. Postnatal symptoms may include abdominal distension, cardiac failure, consumptive coagulopathy and bleeding due to tumour rupture, but is dependent on the nature of the actual tumour. Treatment options may include watchful waiting, surgical resection, hepatic artery embolisation/ligation and chemotherapy.