Synonyms: PML | Progressive multifocal leukoencephalitis
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2026
Newly diagnosed with
Progressive multifocal leukoencephalopathy?
Our RARE Concierge Services Guides are available to assist you by providing information, resources and connections as you navigate your rare disease journey.
Advocacy Organizations
Encephalitis Society
Our vision A world without death and disability from encephalitis. Our mission Rebuilding futures around the world by saving lives, accelerating awareness and driving research.
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Clinical Trials
For a list of clinical trials in this disease area, please click here.