Related Experiment Video
Updated: Jul 14, 2026
06:24
Mouse Models of Periventricular Leukomalacia
Published on: May 18, 2010
[Progressive multifocal leukoencephalopathy]
Endre Pál1, Zsuzsanna Aschermann, Eva Gömöri
1Pécsi Tudományegyetem, Orvos- es Egészségtudományi Centrum, Neurológiai Klinika, Pécs. endre.pal@aok.pte.hu
Ideggyogyaszati Szemle
|June 21, 2007
Summary
Progressive multifocal leukoencephalopathy (PML) is a rare, fatal brain disease caused by JC virus reactivation in immunocompromised individuals. This study highlights PML occurrence in diverse immunodeficiencies, emphasizing diagnostic challenges and rapid progression.
Area of Science:
- Neurology
- Infectious Diseases
- Immunology
Background:
- Progressive multifocal leukoencephalopathy (PML) is a rare, fatal demyelinating disease of the central nervous system.
- It is caused by the opportunistic JC virus, typically reactivating in immunocompromised individuals.
- PML is characterized by multifocal white matter lesions and rapid neurological decline.
Observation:
- The study reports two cases of PML in distinct immunodeficient patients: a 67-year-old male with chronic lymphoid leukemia and a 19-year-old male with X-linked hyper IgM syndrome.
- Both patients presented with progressive hemispheric neurological signs.
- Cerebrospinal fluid analysis was uninformative, while brain MRI revealed bilateral white matter lesions.
Findings:
- Despite treatment, the disease progressed rapidly in both patients.
- Diagnosis was confirmed via brain biopsy and autopsy.
- Both patients succumbed to the illness within six to ten weeks of symptom onset.
Implications:
- These cases underscore that Progressive Multifocal Leukoencephalopathy can manifest across a spectrum of immunodeficiencies.
- The rapid and fatal course highlights the diagnostic and therapeutic challenges associated with PML.
- Early recognition and understanding of PML in various immunocompromised states are crucial for patient management.
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