It is possible that the main title of the report Colitis, Collagenous 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.
Collagenous colitis is a rare digestive disorder that primarily affects females and typically becomes apparent during middle age. The disorder is characterized by inflammatory changes of the mucous membranes (mucosa) of the colon (colitis) and abnormal accumulation (excessive deposition) of the protein collagen beneath the surface (epithelial) layer of the mucosa (thickened subepithelial collagenous bands). The colon is the major portion of the large intestine. The medical literature often refers to collagenous colitis as a form of "microscopic colitis," since evidence of inflammation and other abnormalities may only be confirmed through microscopic (i.e., histologic) examination of multiple tissue samples.
Individuals with collagenous colitis typically experience episodes of chronic, watery, nonbloody diarrhea. In some instances, episodes may often occur at night (nocturnal diarrhea). Diarrheal episodes may be persistent or may occur at intervals (intermittent) over a period of weeks, months, or years. Other symptoms and findings that may occasionally be associated with such episodes include vague abdominal pain, abdominal swelling (distension), nausea, vomiting, and/or weight loss.
The exact cause of collagenous colitis is unknown. Possible immunological, environmental, genetic, and/or other factors are under investigation as potential causes of the disorder.
Crohn's and Colitis Foundation of America
386 Park Avenue South
New York, NY 10016-7374
Digestive Disease National Coalition
507 Capitol Court, NE
Washington, DC 20002
NIH/National Institute of Diabetes, Digestive & Kidney Diseases
Office of Communications & Public Liaison
Bldg 31, Rm 9A06
31 Center Drive, MSC 2560
Bethesda, MD 20892-2560
International Foundation for Functional Gastrointestinal Disorders
700 W. Virginia St., 201
Milwaukee, WI 53217
Gastro-Intestinal Research Foundation
70 East Lake Street
Chicago, IL 60601
Reach Out for Youth with Ileitis and Colitis, Inc.
PO Box 857
Bellmore, NY 11710
Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
3 St. Andrews Place
London, NW1 4LB