[A Case of Serous Retinal Detachment after Encorafenib, Binimetinib, and Cetuximab Treatment for BRAF V600E Mutant Colorectal Cancer].

The patient was a 72-year-old man with a chief complaint of abdominal pain. We performed laparoscopic left hemicolectomy of the colon after descending colon cancer ileus stenting, and postoperative pathology was pT4aN0M0, pStage Ⅱb. In 1.