title: Keratoacanthoma: an unusual nasal mass.
abstract: We report a case of keratoacanthoma in a non-sun-exposed nasal vestibule of an 84-year-old man. He presented with a progressively growing left nasal mass that had been present for 8 months. Examination showed a non-tender protruding mass arising from medial vestibular wall of the left nostril. Histopathology indicated it was a keratoacanthoma. In an elderly patient with a history of a progressively growing mass in the nose, a differential diagnosis of malignancy should be ruled out, and histological conformation is essential. To our knowledge, only a very small number of cases of nasal vestibular keratoacanthoma have been reported.
authors.affiliation: Department of Otorhinolaryngology-Head & Neck Surgery, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia;
authors.forename: M S
authors.initials: MS
authors.lastname: Sazafi
authors.affiliation: Department of Otorhinolaryngology-Head & Neck Surgery, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia;
authors.forename: H
authors.initials: H
authors.lastname: Salina
authors.affiliation: Department of Otorhinolaryngology-Head & Neck Surgery, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia;
authors.forename: A
authors.initials: A
authors.lastname: Asma
authors.affiliation: Department of Pathology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia;
authors.forename: N
authors.initials: N
authors.lastname: Masir
authors.affiliation: Ear, Nose & Throat - Head & Neck Clinic, KPJ Seremban Specialist Hospital, Seremban, Negeri Sembilan, Malaysia.
authors.forename: S H A
authors.initials: SH
authors.lastname: Primuharsa Putra
mesh_terms: D000369:Aged, 80 and over; D006801:Humans; D007636:Keratoacanthoma / Q000473:pathology / Q000601:surgery; D008297:Male; D009296:Nasal Cavity; D009668:Nose Diseases / Q000473:pathology / Q000601:surgery
keywords: Keratoacanthoma; Nasal vestibule