Nasal Epithelial Myoepithelial Carcinoma: An Unusual Cause of Epiphora, a Case Report and Review of the Literature

Abstract

INTRODUCTION Epithelial myoepithelial carcinoma (EMC) of the nasal cavity is a rare tumor, and here we describe the first case of EMC of the nasal cavity presenting with epiphora. A case presentation and review of the literature is provided. METHODS A case report is described of a 63-year-old man who presented with unilateral epiphora and was found via a thorough history and physical examination to have a nasal tumor. The physical examination consisted of an ocular examination, including probing and irrigation, and a detailed nasal examination (anterior rhinoscopy, nasal endoscopy). The nasal examination was prompted by the patient's report of concurrent nasal symptoms during history taking. Immunohistochemistry subsequently identified the nasal tumor as EMC. A literature search was performed to gain insights into similar malignancies of the nasal cavity. RESULTS Eight cases of EMC of the nasal cavity were identified in the literature, none of the patients presented with epiphora. The case presented here resulted in resolution of the patient's symptoms and no evidence of disease after surgical excision. CONCLUSION Epithelial myoepithelial is a rare salivary gland malignancy that can arise in the nasal cavity. Unilateral epiphora with concurrent nasal symptoms should prompt nasal cavity examination for the possibility of an obstructive tumor.