pseudomyxoma peritonei


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pseudomyxoma

 [soo″do-mik-so´mah]
1. a mass of epithelial mucus resembling a myxoma.
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.
References in periodicals archive ?
The patient had a follow-up CT scan 3 months postoperatively which showed no evidence of recurrence or pseudomyxoma peritonei.
They may also present as pseudomyxoma peritonei if cystadencarcinoma gets ruptured and deposits epithelial elements and mucin in peritoneal cavity.
The 33-year-old mum-of-one was told it will be a "miracle" if she lives to see the next two years when she was diagnosed with rare appendix cancer, pseudomyxoma peritonei, last year.
(5) Commonly reported findings in intraperitoneal rhabdomyosarcoma include ascites, intraperitoneal nodules or masses, omental caking, or a pseudomyxoma peritonei appearance.
of cases Percentage (n=8) Cystectomy 3 37.5% Oophorectomy 2 25% Salpingo-oophorectomy 3 37.5% Table 5: Differential diagnosis of an adnexal mass in pregnancy Varian Non ovarian Benign Ectopic pregnancy Functional cysts Paraovarian cyst Follicular cysts Leiomyoma Corpus luteum cysts Hydrosalpinx Theca-lutein cysts Tubo-ovarian abscess Luteomas Peritoneal inclusion cyst Hemorrhagic cysts Diverticular abscess Benign cystic teratomas Appendiceal abscess or tumor Serous cystadenomas Fallopian tube cancer Mucinous cystadenomas Pelvic kidney Endometriomas Lymphoma Malignant Epithelial Germ cell Sex cord/stromal Granulosa cell Metastatic Pseudomyxoma peritonei
Melissa, 33, has stage four signet ring cell appendix cancer - also known as pseudomyxoma peritonei - as well as bowel, ovarian and peritoneal cancer, leaving her needing extensive surgery and chemotherapy.
One of the latter that should be highlighted is mucinous tumors of the appendix and ovary coexisting with pseudomyxoma peritonei. He had long felt that the appendix was the primary site of disease in these cases, provided evidence for it, and lived to see his theory accepted as correct by most authorities.
Complications--Complications from adenocarcinoma are frequent and include metastasis (most common), bleeding, bowel obstruction, intussusception (Figure 8), direct invasion into adjacent structures, visceral perforation, fistula formation, and pseudomyxoma peritonei from perforation of mutinous adenocarcmoma.
Mucinous (colloid) carcinoma, which may result in pseudomyxoma peritonei (34) has been said to result from the combined effect of the production of MUC2 (a gel forming mucin), altered cell polarity and abnormal cell stroma interaction.
(73) Differential diagnosis includes cystic lymphangioma, cystic reactive or inflammatory lesions, and pseudomyxoma peritonei. (87)
Pseudomyxoma peritonei (PMP) is a rare complication of mucinous tumors of appendiceal or ovarian origin, which result in peritoneal and omental implants.