Sclerosing Mucoepidermoid Carcinoma of the Parotid Gland.
BACKGROUND
Mucoepidermoid carcinoma represents one of the most common malignant salivary gland tumors. However, the sclerosing morphologic variant is extremely rare with only 23 reported cases in the English-language literature since it was discovered in 1987.


METHODS
Herein, we describe another case that was diagnosed in a 25-year-old woman presenting with a posterior auricular mass, as well as a review of the literature, which demonstrates that this is an extremely rare malignancy with no strict protocol for treatment.


CONCLUSIONS
Pathologists must be aware of recognizing low grade sclerosing mucoepidermoid carcinoma which has metastatic potential and is frequently misdiagnosed as a benign lesion.
Department of Pathology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Farahnaz
F
Bidari-Zerehpoosh
Department of Otorhinolaryngology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Bijan
B
Naghibzadeh
Department of Pathology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Elena
E
Jamali
Department of Chemistry, Sharif University of Technology, Tehran, Iran.
Moein
M
Jamali
Department of Pathology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Amirali
A
Mafi
Department of Radiology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Hooman
H
Bahrami-Motlagh
Mucoepidermoid carcinoma; Parotid gland; Sclerosing