Giant asymptomatic mastoid pneumocele producing a scalp swelling: A rare case report

摘要

Background:Intraosseous collections of air are rare in comparison to the extra-osseous collection. Pneumoceles are rare entities defined as enlarged pneumatized air sinuses or air cells, with focal or diffuse thinning of the surrounding bony walls. They may affect mastoid air cells and any of the paranasal sinuses.