National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Leprosy is not the name you expected.
Leprosy is a chronic infectious disease of humans caused by the bacteria Mycobacterium leprae. For many years, it was considered a mysterious disorder associated with some type of curse, and persons with the disease were isolated and ostracized. Today, there is effective treatment and the disease can be cured. There is no longer any justification for isolating persons with leprosy.
The disease can affect the skin, mucous membranes, and eyes and some of the nerves that are located outside the central nervous system (peripheral nerves). These are primarily the nerves of the hands, feet, and eyes, and some of the nerves in the skin. In severe, untreated cases, loss of sensation, muscle paralysis of hands and feet, disfigurement, and blindness may occur.
Leprosy has traditionally been classified into two major types, tuberculoid and lepromatous. Patients with tuberculoid leprosy have limited disease and relatively few bacteria in the skin and nerves, while lepromatous patients have widespread disease and large numbers of bacteria. Tuberculoid leprosy is characterized by a few flat or slightly raised skin lesions of various sizes that are typically pale or slightly red, dry, hairless, and numb to touch (anesthetic). Lepromatous leprosy is at the other end of the spectrum, with a much more generalized disease, diffuse involvement of the skin, thickening of many peripheral nerves, and at times involvement of other organs, such as eyes, nose, testicles, and bone. There are also intermediate subtypes between these two extremes that are commonly known as borderline leprosy. The intermediate subtypes are borderline tuberculoid, midborderline, and borderline lepromatous leprosy. Borderline leprosy and the subtypes are characterized by more extensive disease than polar tuberculoid, with more numerous skin lesions and more nerve involvement, but not as widespread disease as in lepromatous leprosy. Indeterminate leprosy refers to a very early form of leprosy that consists of a single skin lesion with slightly diminished sensation to touch. It will usually progress to one of the major types of leprosy.
In 1982, the World Health Organization proposed a simplified classification that has only two classifications, Paucibacillary (PB) and Multibacillary (MB), leprosy. This classification is now used worldwide for treatment purposes. The older and somewhat more complex classification is still used in some programs, especially for clinical research studies. The Paucibacillary classification encompasses indeterminate, tuberculoid and borderline tuberculoid leprosy. The Multibacillary classification includes midborderline, borderline lepromatous and lepromatous leprosy.
American Leprosy Missions
- 1 ALM Way
- Greenville, SC 29601
- Tel: (864)271-7040
- Fax: (864)271-7062
- Tel: (800)543-3135
- Email: firstname.lastname@example.org
- Website: http://www.leprosy.org
Center for Peripheral Neuropathy
- University of Chicago
- 5841 South Maryland Ave, MC 2030
- Chicago, IL 60637
- Tel: (773)702-5659
- Fax: (773)702-5577
- Website: http://peripheralneuropathycenter.uchicago.edu/
Centers for Disease Control and Prevention
- 1600 Clifton Road NE
- Atlanta, GA 30333
- Tel: (404)639-3534
- Tel: (800)232-4636
- Email: email@example.com
- Website: http://www.cdc.gov/
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
- Website: http://rarediseases.info.nih.gov/GARD/
NIH/National Institute of Allergy and Infectious Diseases
- NIAID Office of Communications and Government Relations
- 5601 Fishers Lane, MSC 9806
- Bethesda, MD 20892-9806
- Tel: (301)496-5717
- Fax: (301)402-3573
- Tel: (866)284-4107
- Email: firstname.lastname@example.org
- Website: http://www.niaid.nih.gov/
National Hansen's Disease Programs
- 1770 Physicians Park Dr
- Baton Rouge, LA 70816
- Tel: (800)642-2477
- Email: email@example.com
- Website: http://www.hrsa.gov/hansens/
For a Complete Report
This is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, go to www.rarediseases.org 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.
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.
Last Updated: 4/8/2009
Copyright 2009 National Organization for Rare Disorders, Inc.
Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.