Non-surgical resolution of pneumocephalus following a sneeze.

Pneumocephalus is defined as the abnormal presence of air in the intracranial cavity. Pneumocephalus is most commonly caused by trauma, but there are rare reports of pneumocephalus secondary to allergy-induced sinusitis. In this report, we present a woman in her 60s who presented to the emergency department with a chief complaint of headache after experiencing a 'popping' sensation in her ears while sneezing.