RGS8 and B-cell non-Hodgkin lymphoma: Among them, two patients presented a concomitant B-cell lymphoma (one with Hodgkin’s Lymphoma (HL) and one with B-cell lymphoma of the stomach), and no data regarding tumor association was available in the two other patients; it remains to be defined whether ACA with RGS8-Abs is a paraneoplastic syndrome [1].