“…Graft versus host disease (GVHD) represents one of the most important complications of hematopoietic stem cells transplantation (HSCT), encompassing both an acute form characterized by cutaneous and enteral manifestations (Filipovich et al ., ) and a chronic form associated to a wide series of complications (Filipovich et al ., ; Filipovich, ; Jagasia et al ., ) . In addition, several neuro‐immunological disorders have been also reported with GVHD including cases of myasthenia gravis (Smith et al ., ; Bolger et al ., ) , polymyositis (Anderson et al ., ; Couriel et al ., ) , encephalopathies (Rouah et al ., ; Iwasaki et al ., ; Bossi et al ., ) , plexopathies, (Karam et al ., ) and chronic polyneuropathies, many showing a clinical and neurophysiological phenotype similar to chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) (Amato et al ., ; Griggs et al ., ; Nagashima et al ., ; Peters and Larner , ; Lorenzoni et al ., ; Suzuki et al ., ; Wada et al ., ) .…”