[A Case of Locally Advanced Rectal Cancer in Which Pathological Complete Response Was Achieved with CAPOX and Bevacizumab Chemotherapy].

A 39-year-old man patient was admitted to a nearby clinic with bloody stool. Digital rectal examination revealed a mass lesion in the lower rectum. The patient was referred to our hospital and finally diagnosed with cT4a, N1b, M0, and c-Stage Ⅲb locally advanced rectal cancer. Neoadjuvant chemotherapy(NAC)with CAPOX and bevacizumab was administered to facilitate R0 resection, permitting anal preservation. When the chemotherapeutic regimen was evaluated to have achieved a complete clinical response, the patient underwent laparoscopic low anterior resection. He was shortly discharged without complications. No residual cancer was revealed upon histopathological examination, demonstrating a complete pathological response. Although NAC for rectal cancer has not been recommended by the Japanese guidelines, high response rates have recently been reported. Herein, we present the utility of NAC in the treatment of rectal cancer.