title: Pneumosinus dilatans.
abstract: Deformity of the forehead is usually the first clinical presentation of the abnormally enlarged paranasal sinuses caused by pneumosinus dilatans. The diagnosis and surgical treatment of two cases are reported. The type of osteotomy described is recommended as a method of surgical treatment of this condition.
authors.affiliation: Maxillofacial Unit, Walton Hospital, Liverpool.
authors.forename: O A
authors.initials: OA
authors.lastname: Pospisil
authors.forename: M C
authors.initials: MC
authors.lastname: Balmer
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging / Q000601:surgery; D005146:Facial Asymmetry / Q000209:etiology / Q000601:surgery; D005546:Forehead; D006801:Humans; D008297:Male; D010027:Osteotomy; D010254:Paranasal Sinus Diseases / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography