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[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
PubMed

Insights

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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