Journal of Nippon Medical School
Online ISSN : 1347-3409
Print ISSN : 1345-4676
ISSN-L : 1345-4676
Case Reports
Nasal Myoepithelioma Removed through Endonasal Endoscopic Surgery: A Case Report
Terumichi FujikuraKimihiro Okubo
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2010 Volume 77 Issue 5 Pages 273-276

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Abstract

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.

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© 2010 by the Medical Association of Nippon Medical School
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