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Severe autoimmune hemolytic anemia associated with IgM warm auto‐antibodies in primary Sjögren’s syndrome
Author(s) -
SHINODA Koichiro,
TAKI Hirofumi,
HOUNOKI Hiroyuki,
OGAWA Reina,
SUGIYAMA Eiji,
TOBE Kazuyuki
Publication year - 2010
Publication title -
international journal of rheumatic diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 41
eISSN - 1756-185X
pISSN - 1756-1841
DOI - 10.1111/j.1756-185x.2009.01450.x
Subject(s) - autoimmune hemolytic anemia , medicine , immunology , antibody , autoimmune disease , anemia , hemolytic anemia
Primary Sjögren’s syndrome is an autoimmune disorder involving mainly salivary and lachrymal glands. However, many extraglandular symptoms have also been reported. Although leucocytopenia and lymphocytopenia are frequently observed in hematological disorders, autoimmune hemolytic anemia is rarely reported. We experienced a case of primary Sjögren’s syndrome developing severe autoimmune hemolytic anemia. The patient’s red blood cells showed spontaneous agglutination in saline at room temperature, and immunoglobulin M (IgM) was detected on the surface of red blood cells by flow cytometry, indicating that autoimmune hemolytic anemia was caused by warm reactive IgM antibodies. Immediate corticosteroid therapy resulted in a dramatic recovery. We report a first case of severe autoimmune hemolytic anemia caused by warm reactive IgM antibodies in primary Sjögren’s syndrome.