Pseudomyxoma Peritonei.

Background: Pseudomyxoma peritonei is a rare tumorous disease with various grades of malignancy and is characterized by production of mucinous and gelatinous masses. Development of pseudomyxoma peritonei is usually associated with rupture of appendiceal mucinous tumors and other mucinous tumors of the gastrointestinal tract or ovaries. Pseudomyxoma peritonei is usually divided into three types: low-grade, high-grade, and high-grade with signet ring cells.