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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 26:1336-1338, June-July 2005
© 2005 American Society of Neuroradiology

Case Report
HEAD AND NECK

Cellular Leiomyoma of the Nasal Cavity: Findings of CT and MR Imaging

Koshi Ikeda^a, Masashi Kuroda^a, Noriko Sakaida^b, Minoru Maehara^a, Naoto Ohmura^a and Satoshi Sawada^a

^a Department of Radiology, Kansai Medical University, Moriguchi, Osaka, Japan
^b Department of Pathology, Kansai Medical University, Moriguchi, Osaka, Japan

Address correspondence to Koshi Ikeda, MD, Department of Radiology, Kansai Medical University, 10-15 Fumizonocho, Moriguchi, Osaka 570-8507, Japan

Summary: Nasal leiomyoma, a benign tumor composed of smooth muscle cells, is rare in the head and neck region. Cellular leiomyomas of the uterus exhibit high intensity on T2-weighted images. Here we present a case of nasal leiomyoma in which the pathologic findings are similar to those of cellular leiomyoma. The present case exhibited slightly elevated intensity on T2-weighted images and marked enhancement on postcontrast images. CT findings showed a soft tissue lesion without bone erosion. These findings appear to be characteristic of intranasal leiomyoma.