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Genetic and Rare Diseases Information Center (GARD)

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Progressive multifocal leukoencephalopathy


Other Names for this Disease
  • Leukoencephalopathy, progressive multifocal
  • PML
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Overview


Progressive multifocal leukoencephalopathy (PML) is a neurological disorder that damages the myelin that covers and protects nerves in the white matter of the brain. It is caused by the JC virus (JCV). By age 10, most people have been infected with this virus, but it rarely causes symptoms unless the immune system becomes severely weakened.[1][2] The disease occurs, rarely, in organ transplant patients; people undergoing chronic corticosteroid or immunosuppressive therapy; and individuals with cancer, such as Hodgkin’s disease, lymphoma, and sarcoidosis.  PML is most common among individuals with acquired immune deficiency syndrome (AIDS).[3]
Last updated: 4/1/2011

References

  1. Dugdale DC, Jasmin L. Progressive multifocal leukoencephalopathy. MedlinePlus. 2010; http://www.nlm.nih.gov/medlineplus/ency/article/000674.htm. Accessed 3/3/2011.
  2. Koralnik IJ. Progressive Multifocal Leukoencephalopathy. National Organization for Rare Disorders (NORD). 2010; http://www.rarediseases.org/search/rdbdetail_abstract.html?disname=Progressive%20Multifocal%20Leukoencephalopathy. Accessed 3/3/2011.
  3. NINDS Progressive Multifocal Leukoencephalopathy Information Page. National Institute of Neurological Disorders and Stroke (NINDS). 2010; http://www.ninds.nih.gov/disorders/pml/pml.htm. Accessed 3/3/2011.
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Basic Information

  • MedlinePlus was designed by the National Library of Medicine to help you research your health questions, and it provides more information about this topic.
  • The National Institute of Neurological Disorders and Stroke (NINDS) collects and disseminates research information related to neurological disorders. Click on the link to view information on this topic.
  • The National Organization for Rare Disorders (NORD) is a federation of more than 130 nonprofit voluntary health organizations serving people with rare disorders. Click on the link to view information on this topic.

In Depth Information

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  • PubMed is a searchable database of medical literature and lists journal articles that discuss Progressive multifocal leukoencephalopathy. Click on the link to view a sample search on this topic.

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