A Case of Angiomyoma Arising from Deep Soft Tissue of Foot

Angiomyoma (vascular leiomyoma) mainly occurs in the lower leg, and it is a painful tumor. We report a rare case of angiomyoma arising from the deep soft tissue of the foot. A 81 year-old woman had a 3-month history of right foot nodule. When she visited our hospital, the tumor was seen at the planta pedis and was 5×3cm in size. X-ray showed marked calcification in the tumor. Computed tomography showed a intramuscular mass indicating low density. Magnetic resonance imaging showed an abnormal shadow, indicating low and high signal intensities in T1 and T2 weighted images, respectively. Surgical excision of the tumor was performed. The tumor was circumscribed and white-gray nodule, and calcium flecks were visible. Microscopic examination of the tumor showed the lesion was composed of a well-demarcated nodule of smooth muscle tissue punctured with thin-walled vessels.