pseudomyxoma peritonei


pseudomyxoma

 [soo″do-mik-so´mah] 1. a mass of epithelial mucus resembling a myxoma.2. pseudomyxoma peritonei.pseudomyxoma peritone´i the presence in the peritoneal cavity of mucoid material from a ruptured ovarian cyst or a ruptured mucocele of the appendix.

pseu·do·myx·o·ma pe·ri·to·ne·'i

the accumulation of large quantities of mucinous material in the peritoneal cavity, as a result of malignant cystic neoplasms of the ovary or appendix; it will frequently persist because of the growth of mucus-secreting cells scattered on serosal surfaces. Synonym(s): gelatinous ascites

pseudomyxoma peritonei

A rare condition characterized by poorly-circumscribed gelatinous masses filled with malignant mucin-secreting cells; 45% of PPs arise from the ovary, usually in a mucinous cystadenocarcinoma; 30% are due to mucin-producing CA of the appendix Prognosis Mucinous ovarian cystadenocarcinomas of uncertain malignant potential–'borderline' tumors have a 10-yr survival of 95%; ovarian cystadenocarcinomas with pseudomyxoma have a 10-yr survival of 40%

pseu·do·myx·oma pe·ri·to·ne·i

(sū'dō-miks-ō'mă per'i-tō'nē-ī) The accumulation of large quantities of mucoid or mucinous material in the peritoneal cavity, either as a result of rupture of a mucocele of the appendix or rupture of benign or malignant cystic neoplasms of the ovary.