TY - JOUR TI - Pseudomyxoma Peritonei: Presentation of Two Cases and Challenging Issues in the Literature AU - Pantiora, Eirini V. AU - Massaras, Dimitrios AU - Koutalas, John and AU - Melemeni, Aikaterini AU - Fragulidis, Georgios P. JO - CUREUS PY - 2018 VL - 10 TODO - 12 SP - null PB - CUREUS INC SN - null TODO - 10.7759/cureus.3732 TODO - pseudomyxoma peritonei; cytoreductive surgery; intraperitoneal hyperthennia; appendiceal neoplasm; classification; hipec TODO - Pseudomyxoma peritonei (PMP) is a rather uncommon syndrome in oncology with a unique biological behavior and an estimated incidence of one to two cases per million per year. Clinically, it usually presents with a variety of unspecific signs and symptoms including abdominal pain and distention, ascites, or even bowel obstruction. Despite its intimidating clinical manifestation, PMP is characterized by satisfactory survival rates when treated with cytoreduction and hyperthermic intraperitoneal chemotherapy (HIPEC). We present two interesting cases of PMP deriving from the appendix with a rather atypical presentation, which was successfully treated with cytoreduction and HIPEC. In addition, we intend to raise clinical suspicion on the diagnosis of PMP and comment on several challenging issues concerning the origin and classification of PMP. ER -