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Article History

Received: 24 July 2021

Accepted: 14 March 2022

First Online: 5 April 2022

Declarations

:

: According to national regulations no ethical vote was needed because this is an anonymous case description. The patient signed a consent for publication. We adhered to the declaration of Helsinki and the Austrian Data Safety Authority instructions by anonymising all personal data.

: Written informed consent for publication was given by the patient prior to this case study.

: KB has participated in meetings sponsored by and received travel funding from Roche and Biogen.RB has participated in meetings sponsored by or received honoraria for acting as an advisor/speaker for Alexion, Astra Pharma, Bayer, Boehringer Ingelheim, Fresenius-Kabi, GE Healthcare, Gilead, Nestlé Health Science, Pfizer and ZOLL Medical.AG reports no conflicts of interest.RH reports no conflicts of interest.AL reports no conflicts of interest.BP reports no conflicts of interest.AS reports no conflicts of interest.FD has participated in meetings sponsored by or received honoraria for acting as an advisor/speaker for Almirall, Alexion, Biogen, Celgene, Genzyme-Sanofi, Merck, Novartis Pharma, Roche, and TEVA ratiopharm.His institution has received research grants from Biogen and Genzyme Sanofi.He is section editor of the MSARD Journal (Multiple Sclerosis and Related Disorders) and review editor of Frontiers Neurology.HH has participated in meetings sponsored by, received speaker honoraria or travel funding from Biogen, Merck, Novartis, Sanofi-Genzyme, Siemens, Teva, and received honoraria for acting as consultant for Biogen, Novartis and Teva.