title: Pseudocyst of the ear. Report of three cases.
abstract: Pseudocyst of the ear is a rare entity with controversial pathogenesis. Usually it is presented as a solitary, unilateral, fluctuant and non-inflammatory tumour of the ear with overlying normal skin. It occurs most often in young adult males. Incission reveals a serous liquid, with the consistency of olive oil, contained in the cyst-like lesion. Histopathology shows an intracartilaginous cavity with signs of degeneration and necrosis of the limiting cartilage. We present three new cases of this entity. Continuous minor trauma appears to be the causative factor in one of the patients, who also presented bilateral lesions.
authors.affiliation: Department of Dermatology, Hospital of Cruces, University of the Basque Country, Bilbao, Spain.
authors.forename: M
authors.initials: M
authors.lastname: González
authors.forename: J A
authors.initials: JA
authors.lastname: Ratón
authors.forename: D
authors.initials: D
authors.lastname: Manzano
authors.forename: R
authors.initials: R
authors.lastname: Zabala
authors.forename: N
authors.initials: N
authors.lastname: Landa
authors.forename: J L
authors.initials: JL
authors.lastname: Díaz-Pérez
mesh_terms: D000328:Adult; D003560:Cysts / Q000209:etiology / Q000473:pathology; D004427:Ear Diseases / Q000473:pathology; D004431:Ear, External; D006801:Humans; D008297:Male; D008875:Middle Aged