A case of primary great saphenous vein leiomyosarcoma showing high uptake on fdg-pet

Abstract

The patient was a 79-year-old man who had an extended thymectomy for thymic carcinoid 2 years prior. FDG-PET was performed to rule out recurrent discase. The FDG-PET images showed an abnormal accumulation in the right inguinal region. In order to obtain a definite diagnosis, an inguinal tumor resection was done under local anesthesia. The resected tumor was confirmed to be a leiomyosarcoma on histopathology. Thus, the residual tumor was subseguently fully resected along with the great saphenous vein. A primary leiomyosarcoma involving of the venous system is rare ; involvement of the great saphenous vein is even rarer. In this paper, we report a case of primary great saphenous vein leiomyosarcoma which showed high-uptake on FDG-PET.