Posterior fossa subdural empyema in the term neonate.

A case of posterior fossa subdural empyema following neonatal meningitis is reported. Computerized tomography (CT) carried out on the 11th day after birth showed an obstructive hydrocephalus with diffuse cerebellar swelling. Ventricular drainage was carried out to control the hydrocephalus and antibiotics were given intravenously. A second CT scan taken on the 21st day after birth revealed a loculated subdural empyema in the retrocerebellar space. Serial CT scans showed a diminution in the size of the empyema.