Abstract
A 77-year-old man who had been treated for myelodysplastic syndrome presented with abdominal pain. On upper gastrointestinal endoscopy, a 0-IIc lesion 10mm in diameter was found in the lower portion of the stomach. Moreover, on colonoscopy, a 0-Is lesion 10mm in diameter was found in the ascending colon. Synchronous double cancer of the stomach and the ascending colon associated with myelodysplastic syndrome was diagnosed. Endoscopic treatment was not appropriate for these lesions. Distal partial gastrectomy (D1+α) and right hemicolectomy (D2) were performed. On histopathology, the 0-IIc lesion of the stomach was diagnosed as well differentiated adenocarcinoma (pM, pN0, ly0, v0, pStage I A) and the 0-Is lesion of the colon, as moderately differentiated adenocarcinoma (pSM2, pN0, ly0, v0, pStage I). The patient followed a favorable postoperative course and was discharged on the 15th postoperative day. We report a rare operative case of synchronous double cancer of the stomach and the colon associated with myelodysplastic syndrome. So for only one another case has been reported in Japan.
