Primary Sclerosing Cholangitis
National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Primary Sclerosing Cholangitis 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.
Primary sclerosing cholangitis (PSC) is a rare progressive disorder characterized by inflammation, thickening, and abnormal formation of fibrous tissue (fibrosis) within the passages that carry bile from the liver (bile ducts). Both the bile ducts within the liver (intrahepatic) and outside the liver (extrahepatic) are affected. This often results in the obstruction or interruption of bile flow from the liver (cholestasis). Symptoms associated with PSC include fatigue and itching (pruritus), followed by yellowing of the skin, mucous membranes, and whites of the eyes (jaundice). Affected individuals may also have dark urine, light-colored stools, abdominal pain, and/or nausea. In some cases, the liver may also become abnormally enlarged (hepatomegaly). Scarring of the liver (cirrhosis) eventually develops and many individuals will ultimately require a liver transplant. According to the medical literature, approximately 60 to 80 percent of individuals with PSC also have inflammatory bowel disease (IBD), most often ulcerative colitis. The relationship between these disorders and the exact cause of PSC are not fully understood.
PSC is a complex disorder and the cause (etiology) and underlying manner the disease develops (pathogenesis) are not fully understood. PSC was first described in the medical literature in 1867. Some researchers believe that PSC represents a group of disorders or a disorder with several distinct subtypes (e.g. PSC with IBD or without IBD). It is likely that PSC may have different underlying causes in different individuals. PSC is a rapidly evolving disease concept and information about PSC is constantly changing and emerging as researchers work to better understand this disorder.
American Autoimmune Related Diseases Association, Inc.
22100 Gratiot Ave.
Eastpointe, MI 48021
American Liver Foundation
39 Broadway, Suite 2700
New York, NY 10006
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
Canadian Liver Foundation
3100 Steeles Avenue East Suite 801
Markham Ontario, L3R 8T3
British Liver Trust
2 Southampton Road
Ringwood, BH24 1HY
Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
Autoimmune Information Network, Inc.
PO Box 4121
Brick, NJ 08723
PSC Partners Seeking a Cure
5237 South Kenton Way
Englewood, CO 80111
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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.
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Last Updated: 11/20/2013
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