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Pseudomyxoma Peritonei

National Organization for Rare Disorders, Inc.


It is possible that the main title of the report Pseudomyxoma Peritonei is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.


  • colloid carcinoma
  • disseminated peritoneal adenomucinosis (DPAM)
  • malignant appendiceal tumor
  • malignant large bowel cystadenocarcinoma
  • malignant large bowel peritoneal carcinomatosis
  • malignant large bowel tumor
  • mucinous cyst adenocarcinoma
  • mucinous cystadenoma
  • peritoneal carcinomatosis
  • peritoneal mucinous carcinomatosis (PMCA)
  • pseudomyxoma ovarii
  • PMP

Disorder Subdivisions

  • None

General Discussion

Pseudomyxoma peritonei is a rare malignant growth characterized by the progressive accumulation of mucus-secreting (mucinous) tumor cells within the abdomen and pelvis. The disorder develops after a small growth (polyp) located within the appendix bursts through the wall of the appendix, and spreads mucus-producing tumor cells throughout the surrounding surfaces (e.g., the membrane that lines the abdominal cavity [peritoneum]). As mucinous tumor cells accumulate, the abdominal area becomes swollen and digestive (gastrointestinal) function becomes impaired. Pseudomyxoma peritonei develops at a variable rate, but may grow at a slower rate (indolent) than other malignancies within the abdomen.


American Cancer Society, Inc.

250 Williams NW St

Ste 6000

Atlanta, GA 30303


Tel: (404)320-3333

Tel: (800)227-2345

TDD: (866)228-4327


National Cancer Institute

6116 Executive Blvd Suite 300

Bethesda, MD 20892-8322


Tel: (301)435-3848

Tel: (800)422-6237

TDD: (800)332-8615



PMP Pals' Network

P.O. Box 6484

Salinas, CA 93912

Tel: (831)424-4545

Fax: (831)424-4545



Rare Cancer Alliance

1649 North Pacana Way

Green Valley, AZ 85614



Genetic and Rare Diseases (GARD) Information Center

PO Box 8126

Gaithersburg, MD 20898-8126

Tel: (301)251-4925

Fax: (301)251-4911

Tel: (888)205-2311

TDD: (888)205-3223


Friends of Cancer Research

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Washington, DC 22202

Tel: (202)944-6700



Cancer Support Community

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Washington, DC 20036

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Tel: (888)793-9355


Lance Armstrong Foundation

2201 E. Sixth Street

Austin, TX 78702

Tel: (512)236-8820

Fax: (512)236-8482

Tel: (877)236-8820




3 St. Andrews Place

London, NW1 4LB

United Kingdom

Tel: 02074860341

Fax: 02072242012



PMP Research Foundation, Inc.

6415 Granger Rd.

Suite 200

Independence, OH 44131


Tel: (216)986-7010

Fax: (216)524-9111



For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site or email

Last Updated:  3/22/2012

Copyright  1991, 1996, 1997, 1999, 2002, 2008, 2012 National Organization for Rare Disorders, Inc.

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