Intracranial complications of frontal sinusitis. A report of two cases.

Two cases are reported of intracranial complications of sinusitis, unusual nowadays. They were caused by osteomyelitis of the frontal bone following chronic frontal sinusitis. These cases were distinguished by complete destruction of the posterior wall of the sinus involved: in one of the cases there was an acute central neurological disturbance caused by a cerebral abscess; in the other patient, who came for consultation because of a Pott's Puffy tumour, a sizeable epidural abscess was found.