Calcified angioleiomyoma of foot arising from the posterior tibial artery

Abstract

Case A 77-year-old woman was presented with a mass in the plantar side of left foot. Physical examinations revealed 30× 20-mm-sized hard mass with tenderness. Plane X-ray and computed tomography showed heterogenously calcified tumor that contacted with posterior tibial artery. Magnetic resonance imaging indicated spindle-shaped tumor in subcutis. That was isointense and hypointense on the T1-weighted image and hyperintense on the T2-weighted image. The tumor and its feeding artery, posterior tibial artery, were enhanced with gadolinium diethylene triamine pentaacetic acid. Surgical resection was performed, and the histology was characteristic of an angioleiomyoma. The patient had no symptom after surgery. No recurrence occurred 2 years after operation. Disccusion It is difficult to make a preoperative diagnosis of angioleiomyoma because it has no specific findings. MRI finding is useful but not specific. Our case had calcification with its feeding artery, so preoperative diagnosis could be done as vascular tumor. Complete resection is the curative treatment. Though, recurrent or malignant transformation cases were reported, thus careful observation is required.