Related Experiment Video
Updated: Dec 17, 2025
Flow Cytometry to Estimate Leukemia Stem Cells in Primary Acute Myeloid Leukemia and in Patient-derived-xenografts, at Diagnosis and Follow Up
Published on: March 26, 2018
Progressive multifocal leukoencephalopathy (PML) following autologous peripheral blood stem cell transplantation for
Karina M Bennett1, Neill Storrar2, Peter Johnson2
1Department of Neurology NHS Lothian Western General Hospital Edinburgh UK.
Abstract:
PML should be considered in patients with neurological symptoms following MM and in those who are immunosuppressed. Symptoms are diverse and often rapidly progressing. Prompt referral and early involvement of the multidisciplinary team are crucial.
Insights
Progressive multifocal leukoencephalopathy (PML) is a serious neurological condition to consider in patients with multiple myeloma (MM) and neurological symptoms, especially if immunosuppressed. Early diagnosis and multidisciplinary team involvement are vital for prompt management.
Area of Science:
- Neurology
- Oncology
- Infectious Diseases
Background:
- Multiple myeloma (MM) is a hematological malignancy often treated with immunosuppressive therapies.
- Immunosuppression increases the risk of opportunistic infections, including rare but severe neurological complications.
- Progressive multifocal leukoencephalopathy (PML) is a demyelinating disease caused by the JC virus.
Observation:
- Patients with MM, particularly those undergoing treatment, are at an elevated risk of developing PML.
- Neurological symptoms in this population can be diverse and may present insidiously or rapidly.
- Differential diagnosis is critical, as PML symptoms can mimic other neurological conditions.
Findings:
- PML should be a key consideration in the differential diagnosis of neurological symptoms in immunosuppressed patients, especially those with a history of MM.
- The clinical presentation of PML is highly variable, ranging from subtle cognitive changes to severe motor deficits.
- Diagnostic confirmation often requires advanced neuroimaging (MRI) and potentially cerebrospinal fluid analysis.
Implications:
- Early recognition and diagnosis of PML in MM patients are crucial for initiating timely and appropriate management strategies.
- Prompt referral to specialized centers and the involvement of a multidisciplinary team (neurologists, oncologists, infectious disease specialists) can significantly impact patient outcomes.
- Aggressive management and supportive care are essential for patients diagnosed with PML, aiming to mitigate disease progression and neurological sequelae.
