[A Case of Robot-Assisted Total Pelvic Organ Resection for Locally Advanced Rectal Cancer for the Elderly].

An 85-year-old man underwent robot-assisted total pelvic organ resection for advanced lower rectal cancer suspected infiltration of the prostate. The pathological diagnosis results were pT4b(prostate)N0M0, pStage Ⅱc. Post-operative complications included the onset of aspiration pneumonia on the fifth day after surgery, but the hospital stay of the patient was 43 days after surgery. With the recent trend of an aging society, the proportion of cancer patients over 85 years old has been steadily increasing. By examining the characteristics of colorectal cancer surgeries performed on patients aged 85 and older at our hospital, we confirmed that radical resection is beneficial even for older adults. We experienced a case of robot- assisted total pelvic organ resection for locally advanced rectal cancer in an elderly patient, and we will report this case with a literary discussion.