Congenital medulloblastoma.

SYNOPSIS Congenital medulloblastomas are very rare tumours and only 14 cases have been reported in the literature. A case report is presented on another case where hydrocephalus was present at the time of delivery resulting in dystocia. In a review of the literature, it is found that progressive head enlargement and hydrocephalus were the commonest modes of presentation. There is a high female incidence and familial cases have also been described. The importance of intrauterine brain tumours as a cause of hydrocephalus is pointed out.