Pancreatic Islet Cell Tumor

National Organization for Rare Disorders, Inc.

Important
It is possible that the main title of the report Pancreatic Islet Cell Tumor 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.

Synonyms

  • Encephalopathy, Hypoglycemic
  • Multiple Endocrine Adenomatosis

Disorder Subdivisions

  • None

General Discussion

Pancreatic-islet cell tumors appear in one of two forms. They may be nonfunctioning or functioning tumors. Nonfunctioning tumors may cause obstruction in the shortest part of the small intestine (duodenum) or in the biliary tract, which connects the liver to the duodenum and includes the gall bladder. These nonfunctioning tumors may erode and bleed into the stomach and/or the intestines, or they may cause an abdominal mass.

Functioning tumors secrete excessive amounts of hormones, which may lead to various syndromes including low blood sugar (hypoglycemia), multiple bleeding ulcers (Zollinger-Ellison Syndrome), pancreatic cholera (Verner-Morrison Syndrome), carcinoid syndrome or diabetes.

Islet cells are small, isolated masses of cells that make up the Islet of Langerhans in the pancreas. When functioning normally, they secrete the protein hormones insulin and glucagon. Tumors composed of irregular islet cells may occur alone or in a group of many tumors. Approximately 90% of islet-cell tumors are noncancerous (benign). They usually range in size from 0.5 to 2 cm in diameter.
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Resources

American Cancer Society, Inc.
1599 Clifton Road NE
Atlanta, GA 30329
USA
Tel: (404)320-3333
Tel: (800)227-2345
TDD: (866)228-4327
Internet: http://www.cancer.org

NIH/National Digestive Diseases Information Clearinghouse
2 Information Way
Bethesda, MD 20892-3570
Tel: (301)654-3810
Fax: (301)907-8906
Tel: (800)891-5389
Email: nddic@info.niddk.nih.gov
Internet: http://www.niddk.nih.gov

MUMS National Parent-to-Parent Network
150 Custer Court
Green Bay, WI 54301-1243
USA
Tel: (920)336-5333
Fax: (920)339-0995
Tel: (877)336-5333
Email: mums@netnet.net
Internet: http://www.netnet.net/mums/

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
Email: ordr@od.nih.gov
Internet: http://rarediseases.info.nih.gov/Default.aspx

Cancer.Net
American Society of Clinical Oncology
2318 Mill Road
Suite 800
Alexandria, VA 22314
Tel: (571)483-1780
Fax: (571)366-9537
Tel: (888)651-3038
Email: contactus@cancer.net
Internet: http://www.cancer.net/patient

CORE
3 St. Andrews Place
London, NW1 4LB
UK
Tel: 020 7486 0341
Fax: 020 7224 2012
Email: info@corecharity.org.uk
Internet: http://www.corecharity.org.uk

For a Complete Report

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders, Inc. ® (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html

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