Cellular Leiomyoma of the Nasal Cavity: Report of a Case and Review of Literature

We report a rare case of cellular leiomyoma in the nasal cavity. A 72-year-old Japanese woman was admitted to a hospital. A tumoral lesion was revealed in the left nasal cavity. Angiography showed tumor staining, and the tumor was endoscopically resected after the embolizaion of the feeding artery. At gross inspection, the tumor measured 1.0 × 1.5 × 2.0 cm. Microscopically, the tumor consisted of many spindled cells with blunt ended nuclei. Immunohistochemical examination revealed that the tumor cells were positive for vimentin, alpha smooth muscle actin. We diagnosed this case as cellular leiomyoma. To the best of our knowledge, there have been only 23 reported cases of nasal leiomyoma in English medical literature. We made a brief literature review of the occurrence of this tumor in the nasal cavity.