Late-onset progressive multifocal leukoencephalopathy after teclistamab in multiple myeloma: extending the timeline of infectious risk

Key Points

• To examine the occurrence of late-onset progressive multifocal leukoencephalopathy in a patient receiving teclistamab for multiple myeloma.
• Case analysis of a patient with multiple myeloma treated with teclistamab.
• Review of clinical symptoms and diagnostic imaging results after treatment.
• Assessment of infectious complications post-treatment.
• The patient developed progressive multifocal leukoencephalopathy after teclistamab treatment.
• Imaging revealed characteristic lesions in the brain associated with the condition.
• Findings suggest an extended timeline for infectious risks linked to teclistamab.