Pneumocephalus Secondary to Acute Sinusitis

—Case Report—

Abstract

We encountered a male patient with a pneumocephalus secondary to acute sinusitis. A fistula between the sphenoid sinus and the intracranial cavity, probably the subarachnoid space, was detected during puncture and irrigation of the sphenoid sinus. This fistula might have been quite small and might have closed spontaneously. Sellar tomograms and metrizamide computed tomographic cisternography had failed to disclose the fistula.