title: Pseudocarcinomatous hyperplasia involving the ear from gout: a diagnostic pitfall.
abstract: The ear is a characteristic location for deposition of uric acid in patients with gout. Pseudocarcinomatous hyperplasia has not been described in this location. We report three patients with tophaceous gout on the ear whose biopsies exhibited epidermal hyperplasia mimicking squamous cell carcinoma, in order to call attention to this potential diagnostic pitfall.
authors.affiliation: Section of Dermatopathology, Department of Dermatology, Boston University School of Medicine, Boston, MA, USA.
authors.forename: Kelly A
authors.initials: KA
authors.lastname: Morrissey
authors.forename: Victoria
authors.initials: V
authors.lastname: Garcia-Albea
authors.forename: Lynne J
authors.initials: LJ
authors.lastname: Goldberg
mesh_terms: D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D003937:Diagnosis, Differential; D004423:Ear / Q000473:pathology*; D004428:Ear Neoplasms / Q000473:pathology*; D006073:Gout / Q000473:pathology*; D006801:Humans; D006965:Hyperplasia / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000473:pathology*
keywords: ear; gout; pseudocarcinomatous hyperplasia; pseudoepitheliomatous hyperplasia