Nasal myoepithelioma removed through endonasal endoscopic surgery: a case report.
Myoepithelioma is a rare neoplasm that can occur in either the major or minor salivary gland and accounts for less than 1% of salivary gland neoplasms. We report a rare case of a nasal myoepithelioma that originated from the nasal inferior turbinate. The tumor, measuring 50 × 30 × 20 mm, was in the right nasal cavity and had a necrotic surface. We removed the tumor through endonasal endoscopic surgery. The tumor had spindle-shaped cells and was positive for cytokeratin, (AE1/AE3), vimentin, S-100β, and MIB-1 but was negative for CD34, desmin, neuron-specific enolase, and synaptophysin. Slight immunoreactivity for smooth muscle actin was noted in some tumor cells. There has been no evidence of tumor recurrence in the 18 months following surgery.
Department of Head & Neck and Sensory Organ Science, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan. teru-fujik@nms.ac.jp
Terumichi
T
Fujikura
Kimihiro
K
Okubo
D000368:Aged; D004724:Endoscopy / Q000379:methods*; D006801:Humans; D008297:Male; D009208:Myoepithelioma / Q000000981:diagnostic imaging / Q000601:surgery*; D009669:Nose Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D014057:Tomography, X-Ray Computed