Intracerebellar hematoma in a term newborn secondary to an angiomatous malformation--case report.

A neonate born after an uncomplicated, full-term pregnancy was evaluated for acute-onset intermittent vomiting and bradycardia at 3 days of age. Computed tomography showed an intracerebellar hematoma and symmetrical dilatation of the ventricles. No abnormal vascularity was demonstrated by angiography. The hematoma and an angiomatous lesion in the cerebellum were removed through a suboccipital craniectomy when he was 21 days old. The histological diagnosis was angiomatous malformation. He is developing normally at 10 months of age. Arteriovenous malformation should be considered in the differential diagnosis of intracerebellar hematoma in any newborn whose delivery did not involve trauma or hypoxia and who has no hemorrhagic diathesis.