Resection of Asynchronous Quadruple Advanced Colonic Carcinomas Followed by Reconstruction with Ileal Interposition between the Transverse Colon and Rectum

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We report an extremely rare case of resectable asynchronous quadruple advanced colonic carcinomas. Successful reconstruction was performed after resection with an ileal interposition between the remaining colon and rectum, and the patient recovered bowel function. Resections of the four colonic lesions in three operations allowed us to leave a portion of the large bowel and to thereby preserve the rectum and a portion of the transverse colon. After resection of the third and fourth cancer lesions, we reconstructed the large bowel with ileal segment interposition between the residual transverse colon and rectum, leaving a 15-cm-long segment portion of the transverse colon. This surgical procedure is an option for reconstruction after left-sided colectomy.