As the indications for laparoscopic surgery expand, the number of complications specific to laparoscopic surgery and severe injuries, such as intestinal damage and ureteral injury have also increased. In our hospital, we use the Yellow Port Plus® produced by AMCO as a 5-mm port, which is reusable. During total laparoscopic hysterectomy for uterine corpus cancer, we noticed a leakage of carbon dioxide gas from the port as the scissor forceps were removed. We checked the valve of that port and found it had been damaged. A part of the valve was found on the surface of the sigmoid colon just below the tip of the port, and we managed to salvage it. To our knowledge, valve injuries have never been reported. If this finding had been delayed, it would have been undetectable. We noticed the leakage of carbon dioxide gas and responded promptly, it was possible to avoid the contamination of a piece of valve in the body. Since rare contingent complications occur infrequently, it is very meaningful to share the knowledge of these complications with those that are not as experienced.
