Table 2.

Underlying or associated conditions in secondary warm AIHA.

Lymphoproliferative disorders	B-cell lymphoma (Chronic lymphocytic leukemia, non-Hodgkin B-cell lymphomas) T-cell lymphoma (T-LGL leukemia, angioimmunoblastic T-cell lymphoma) Hodgkin lymphoma Castleman disease
Other hematologic disorders	Myeloid neoplasms (Myelodysplastic syndrome, myelofibrosis) An associated immune cytopenia, usually ITP (Evans’syndrome)
Solid tumors	Ovarian dermoid cyst or carcinoma Thymoma
Non-hematologic autoimmune and inflammatory diseases	Rheumatologic diseases (SLE, Rheumatoid arthritis, Sjögren syndrome) Antiphospholipid syndrome Autoimmune hepatitis Ulcerative colitis Sarcoidosis Eosinophilic fasciitis
Primary immunodeficiencies	Common variable immunodeficiency Autoimmune lymphoproliferative syndrome
Infections	Viruses (EBV, hepatitis, CMV, HIV, SARS-CoV-2) Bacteria (Tuberculosis, brucellosis) Protozoa (Babesiosis)
Transplantations	Allogenic bone marrow transplantation Organ transplantation (Liver, small bowel)

Some ultra-rare conditions have been omitted. CMV, cytomegalovirus; EBV, Epstein-Barr virus; HIV, human immunodeficiency virus; ITP, immune thrombocytopenia; LGL, large granular lymphocyte; SARS-CoV, severe adult respiratory syndrome corona virus; SLE, systemic lupus erythematosus.