Full Form of PML

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PMLstands for

Progressive Multifocal Leukoencephalopathy

What is PML?

Progressive Multifocal Leukoencephalopathy (PML) is a rare and often fatal demyelinating disease of the central nervous system caused by the JC virus. It primarily affects individuals with severely compromised immune systems, such as those with HIV/AIDS, organ transplant recipients on immunosuppressive therapy, or patients receiving certain immunomodulatory drugs for autoimmune conditions. In India, PML is most commonly seen in the context of HIV co-infection, though improved antiretroviral therapy has reduced its incidence. The disease leads to progressive damage to the white matter of the brain, resulting in a range of neurological deficits including weakness, cognitive decline, and visual disturbances. Diagnosis is confirmed via MRI imaging and detection of JC virus DNA in cerebrospinal fluid. While there is no specific antiviral treatment, management focuses on restoring immune function—for example, by optimizing antiretroviral therapy in HIV patients or reducing immunosuppression in transplant recipients. PML is a topic of high relevance for medical entrance exams like NEET PG and for neurologists specializing in infectious diseases. Awareness of this condition is critical in India’s clinical settings due to the large HIV-positive population.

PML का फुल फॉर्म

प्रगतिशील मल्टीफोकल ल्यूकोएन्सेफैलोपैथी

Example

The patient, a 35-year-old HIV-positive male not on antiretroviral therapy, presented with hemiparesis and cognitive decline; MRI showed multifocal white matter lesions consistent with PML.

PML — frequently asked questions

What is the full form of PML?
The full form of PML is Progressive Multifocal Leukoencephalopathy, a demyelinating disease of the central nervous system caused by the JC virus.
Who is at risk for PML in India?
In India, PML primarily affects individuals with compromised immune systems, especially HIV/AIDS patients not on adequate antiretroviral therapy, organ transplant recipients, and those on immunosuppressive drugs.
Can PML be treated?
There is no specific antiviral cure for PML. Treatment focuses on restoring immune function, such as optimizing ART in HIV patients or reducing immunosuppression, along with supportive care.
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