A case of an abnormally large air cell in concha nasalis: The differential diagnosis of pneumocele

Abstract

A case of an abnormally large air cell in concha nasalis is reported. This rare case was characterized by the expansion of the left air cell in concha nasalis, which was found to contain air only. In a 47-year-old woman with intermittent left nasal obstruction and pain in the left root of the nose caused by focal expansion of the left air cell in concha nasalis, pneumocele was suspected. The clinical findings and the possible etiologies of this condition are discussed, distinguishing the principal differences between pneumocele and pneumosinus dilatans.