Subdural empyema is a rare complication of sinusitis in children. Its clinical 
presentation represents a neurosurgical emergency and as a scarcely recognized 
entity a delayed diagnosis rapidly increases its fatal prognosis. We report the 
clinical and radiological course of an adolescent with a subdural empyema 
secondary to sinusitis. Clinical and radiological features, laboratory findings 
and outcome of this condition are discussed based in a review of previously 
reported cases.