Mucoepidermoid carcinoma involving the lacrimal sac.

Mucoepidermoid carcinoma of the lacrimal sac was diagnosed in a 62-year-old woman who presented with epiphora and a fixed painless mass in the area of the lacrimal sac. Histopathologic findings included nests and islands of neoplastic cells in a fibrotic stroma. The tumor nests contained both glandular spaces and solid epithelial areas. Treatment entailed dacryocystectomy with silastic intubation and subsequent medial maxillectomy and ethmoidectomy. The patient was tumor free on 1-year follow-up. Clinical features, histopathological findings, prognosis, and management of this rare tumor are reviewed in this article.