Sawamoto, M.Ikeda, KaoriOda, K.Kumamoto, T.Isogai, R.Yamada, H.Nakayama, T.2015-12-132015-12-130909-752Xhttp://hdl.handle.net/1885/82173A 50-year-old woman was refered to our out-patientclinic for the evaluation of a ten-year history of subcutaneous tumor in her abdomen. On CT examination, she had a subcutaneous tumor measuring cal 7cm in diameter and the thick rectus abdominal muscle. Histopathologic examination of the biopsy specimen demonstrated granular cell tumor. At surgery, we noted peritoneal infiltration, but there was no infiltration of the internal organs in the abdominal cavity. Therefore, we removed the tumor with peritoneum, but without internal organs. The lesion was excised under general anesthesia and the peritoneal defect was reconstructed with fascia lata. The vertical margin was positive on histpathologic examination for infiltration of the peritoneum. We noted recurrence ten months postoperatively. Although the lesion was a histopathological variant, it was diagnosed as malignant based on the clinical course.Keywords: adult; article; cancer infiltration; cancer recurrence; case report; computer assisted tomography; disease course; fascia lata; female; general anesthesia; granular cell tumor; histopathology; human; human tissue; malignant neoplastic disease; outpatient Granular cell tumor; Malignant; Peritoneal infiltration20082015-12-11