[A Case of Rectal Cancer of Skin Metastasis Recurrence Near the Artificial Anus].

A 70s-year-old man visited the gastroenterologist with a complaint of bloody stool. Lower gastrointestinal endoscopy revealed a 50 mm type 0-Ⅰs+Ⅱa lesion in the center of the anterior wall of Rb in 4 cm from anal verge, and he was diagnosed with rectal cancer in cT1bcN0cM0, cStage Ⅰ. Endoscopic submucosal dissection was performed, but it was discontinued due to muscular traction, and was referred to our department at a later date for surgical purposes. Robot-assisted laparoscopic Hartmann's surgery(D2 dissection, sigmoid colon colostomy)was performed, and the pathological result was pT2pN0cM0, pStage Ⅰ with negative resection margins. Three months after the operation, a tumor was found on the left side of the stoma, and he visited us. Biopsy revealed the recurrence of skin metastasis of rectal cancer, and surgical procedure including colostomy and skin tumor resection, ileostomy, and colonic mucus fistula was performed. The patient was transferred to the hospital 3 months after the operation, but 2 months after the transfer, an increasing CEA was observed and CT revealed a local recurrence in the pelvis. Irradiation(45 Gy/15 times)was performed for the pain relief, but the general condition deteriorated thereafter and he died 8 months after the second operation.