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.
Keywords: autologous peripheral blood stem cell transplantation; multiple myeloma; progressive multifocal leukoencephalopathy.
© 2020 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.