[Cytoreductive Surgery Performed Twice for Pseudomyxoma Peritonei with Pleural Extension of Mucinous Tumor].

Pseudomyxoma peritonei (PMP) is a condition characterized by production of a large amount of mucopolysaccharides by neoplastic epithelium, with intraabdominal cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) known to be viable treatment options. Pleural extension from an PMP is unusual and thought to be related to diaphragmatic perforation during surgery or transdiaphragmatic spreading of the disease through the lymphatic lacunae. Here, we report a patient with PMP with pleural extension of a mucinous tumor for whom CRS was performed twice.