Non-Traumatic Pneumocephalus and Sub-Dural Empyema as a Complication of Chronic Sinusitis.

Infectious sinusitis is extremely common in children, and persistent infection can lead to many complications. The most dangerous and commonly reported complications are intracranial. These intracranial complications include pneumocephalus, cerebral abscess, subdural empyema, meningitis, cellulitis, orbital abscess, and cavernous sinus thrombosis. Pneumocephalus is the presence of air in the cranium and sometimes it can lead to intracranial infection and localized pus collection in the potential space between meninges. Herein, we report a case of a 12-year-old girl who presented to a pediatric emergency in a confused and disoriented state. The cerebrospinal fluid (CSF) analysis provided a picture of bacterial meningitis, but her CT scan showed pneumocephalus and subdural empyema. This case report will help clinicians overcome this diagnostic challenge using the appropriate imaging and treatment modalities to prevent neurological sequelae.