Source:http://linkedlifedata.com/resource/umls/id/C0033822
MSH: A condition characterized by poorly-circumscribed gelatinous masses filled with malignant mucin-secreting cells. Forty-five percent of pseudomyxomas arise from the ovary, usually in a mucinous cystadenocarcinoma (CYSTADENOCARCINOMA, MUCINOUS), which has prognostic significance. Pseudomyxoma peritonei must be differentiated from mucinous spillage into the peritoneum by a benign mucocele of the appendix. (Segen, Dictionary of Modern Medicine, 1992),NCI: A build-up of mucus in the peritoneal cavity. The mucus may come from ruptured ovarian cysts, from the appendix, or from other abdominal tissues. Mucus-secreting cells may attach to the peritoneal lining and continue to secrete mucus.,NCI: A usually well differentiated mucinous adenocarcinoma of the peritoneum. The majority of cases represent tumor spread from a primary low grade mucinous neoplasm of the appendix. Cases of pseudomyxoma peritonei associated with mucinous adenocarcinomas of the gallbladder, stomach, colon, rectum, pancreas, lung, breast, and