“…In any case, it is well known that anti-CD20 treatment is associated with a high frequency of hypogammaglobulinemia and symptomatic hypogammaglobulinemia, and that replacement therapy with IVIg can reduce the incidence of infections in hypogammaglobulinemic patients. 1 In the present study, we excluded from the case series 6 patients with autoimmune disorders treated with immunosuppressive drugs and rituximab, and 2 patients with acute myeloid leukemia who had undergone hematopoietic stem cell transplantation, who developed hypogammaglobulinemia needing Ig replacement therapy. It is important to report that even in these few patients the use of SCIg was effective, safe and well tolerated.…”