[A case of retroperitoneal leiomyosarcoma with abdominal wall recurrence 7 years after the first operation]

A 79-year-old man presented with a mass lesion under the left kidney that was revealed by abdominal ultrasonography. The retroperitoneal tumor was removed by transabdominal exploration. Histopathological diagnosis was a leiomyosarcoma. Seven years after the first operation, he presented with left flank pain. Computed tomography showed a mass lesion in the abdominal wall. Tumor resection was performed. The pathological diagnosis was recurrence of leiomyosarcoma. The patient remains free from disease recurrence 1 year after the second surgery.