It was a pleasure to hear from David Leppert (University Hospital Basel and University of Basel, Basel, Switzerland) on his late-breaking presentation about the exciting potential of neutrophil granulocyte markers in the cerebrospinal fluid to differentiate neuromyelitis optica spectrum disorder (NMOSD) and myelin oligodendrocyte glycoprotein antibody disease (MOGAD) from multiple sclerosis (MS) in the acute disease phase. […]