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Case Reports
. 2013 Dec;33(6):428-30.

Keratoacanthoma: an unusual nasal mass

M S Sazafi  1 , H Salina  1 , A Asma  1 , N Masir  2 , S H A Primuharsa Putra  3
Affiliations
Case Reports

Keratoacanthoma: an unusual nasal mass

M S Sazafi et al. Acta Otorhinolaryngol Ital. 2013 Dec.

Abstract
in English, Italian

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.

Descriviamo un caso di cheratoacantoma riscontrato a livello del vestibolo nasale in un uomo di 84 anni di età senza storia di esposizione solare. Il paziente presentava una neoformazione nel vestibolo nasale di sinistra comparsa da 8 mesi e progressivamente aumentata di volume. All'esame obiettivo si presentava come una massa esofitica non dolorante a base d'impianto a livello della parete mediale del vestibolo della narice di sinistra. L'esame istologico definitivo poneva diagnosi di cheratoacantoma. In un paziente anziano con storia di neoformazione nasale progressivamente aumentata di volume è necessario escludere la malignità della lesione. Per tale motivo l'esame istologico della lesione è indispensabile. Sulla base della nostra esperienza, sono stati descritti pochi casi di cheratoacantoma del vestibolo nasale.

Keywords: Keratoacanthoma; Nasal vestibule.

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Figures

Fig. 1.
Fig. 1.
Pre-operative view by nasoendoscopy.
Fig. 2.
Fig. 2.
Micrograph of the keratoacanthoma: (A) Low-power view of the lesion showing solid proliferations of squamous epithelium with intervening fibrovascular stroma. (B) Keratin cysts are present within the squamous epithelium. (C) Formation of a central crater filled with parakeratotic keratin. (D) High-power view of the squamous proliferation where cells show mild atypia.
See this image and copyright information in PMC

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