A case of angioleiomyoma in the cheek with remarkable lipidization
2008
Angioleiomyoma is a benign tumor of smooth muscle that originates in blood vessels. It usually arises in the limbs of middle-aged women and rarely occurs in the oral cavity. We report a case of angioleiomyoma in the cheek associated with remarkable lipidization. A 48-year-old man was referred to Hiroshima University Hospital because of a 3-month history of a tumor arising in the left cheek. Clinical examination revealed an elastic firm nodule beneath the cheek skin, which was circumscribed and measured about 15 mm in diameter. Ultrasound examination showed a nodule with a clear margin, through which an artery ran. These findings indicated that the lesion was a primary benign mesenchymal tumor. However, the possibility of a metastatic tumor from malignant fibrous histiocytoma (MFH) could not be ruled out because the patient had undergone resection of MFH arising in the left femur. The tumor was extirpated with the patient under local anesthesia. Histopathological examination showed that the tumor had a fibrous capsule and consisted of mature smooth muscle cells, various-sized blood vessels with thick-walled smooth muscle tissue, and mature fat cells. The tumor was diagnosed to be an angioleiomyoma of the cheek associated with marked lipidization. No sign of recurrence was noted 9 months after treatment.
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