Management of autoimmune complications in patients with lymphoid cancer.

Autoimmune conditions can occur at any temporary relationship with malignant lymphomas. In many instances, treatment at diagnosis is not required, but symptomatic autoimmune conditions represent an indication for treatment particularly in chronic lymphoproliferative diseases. Treatment is selected depending on the predominant condition - autoimmune disease (immunosuppression) or lymphoma (anti-lymphoma therapy). Steroids as well as anti-CD20 antibodies are effective against both and may suppress the autoimmune complication for a prolonged period. Efficacy of B-cell receptor inhibitors has provided us with novel insights into the pathophysiology of antibody-producing B-cells. Screening for underlying autoimmune conditions is part of the lymphoma work-up since other drugs like immunomodulators or checkpoint inhibitors should be avoided or used with caution. Here we discuss diagnostic challenges and treatment approaches for different situations involving lymphomas and autoimmune cytopenias.