A Case of Well-differentiated Papillary Mesothelioma of the Peritoneum Successfully Resected by Laparoscopic Peritonectomy

Abstract

A 44-year-old man with no history of asbestos exposure was diagnosed with rectal carcinoid tumor and underwent endoscopic mucosal resection. Histological examination showed a positive vertical margin. Therefore, he was admitted to our hospital for additional surgery. On admission, he was asymptomatic, and all preoperative examinations were within normal limits. During laparoscopic surgery, yellow miliary nodules were observed on the peritoneum. Since intraoperative pathology revealed well-differentiated papillary mesothelioma (WDPM), laparoscopic peritonectomy together with low anterior resection was performed. The patient's postoperative course was uneventful.