Peritoneal pseudomyxoma: cytoreductive operation and intraperitoneal chemo-hyperthermia--report of two cases.

Peritoneal pseudomyxoma (PMP) can be defined as carcinoma of low grade malignancy that is characterized by the phenomenon of tumor redistribution involving large amounts of extracellular mucin3,5. Primary tumors are usually in the appendix or ovary, and there may be involvement of other organs3,10. Is a slow progressive disease, characterized by accumulation of mucus within the abdomen and pelvis8. Although this tumor is not considered biologically aggressive, because they do not metastasize via hematogenous or lymphatic as gastrointestinal adenocarcinomas, it results in a deadly process.The space inside the abdomen and pelvis becomes replaced by mucinous tumor. Therefore, it often results in death unless it is successfully treated8. The primary tumor rarely causes symptoms. When originating from the appendix arises within an adenoma, and its progressive growth, produces obstruction and distention caused by mucus production of the mucinous tumor8. With the rupture of the appendix happens a slow leak of mucus containing epithelial cells adenoma to the peritoneal cavity, followed by its implantation.