title: Waldenström's macroglobulinemia with prominent splenomegaly and multiple immune disorders.
abstract: We report an uncommon case of Waldenström's macroglobulinemia with prominent splenomegaly associated with acquired C1 inhibitor deficiency, lupus anticoagulant and red blood cell autosensitization. Each of these immune abnormalities has been occasionally reported separately in patients with diverse B-cell lymphoid malignancies, but never before have they appeared simultaneously in the same patient. In this case, the pathogeny of the C1 inhibitor deficiency is questionable and may possibly be directly related to the IgM monoclonal gammapathy through protein-protein interactions, as occurs for lupus anticoagulant.
authors.affiliation: Service d'Hématologie, Hôtel-Dieu, Paris, France.
authors.forename: A
authors.initials: A
authors.lastname: Delmer
authors.forename: F
authors.initials: F
authors.lastname: Garban
authors.forename: A
authors.initials: A
authors.lastname: Le Tourneau
authors.forename: J
authors.initials: J
authors.lastname: Conard
authors.forename: L
authors.initials: L
authors.lastname: Weiss
authors.forename: J
authors.initials: J
authors.lastname: Diebold
authors.forename: R
authors.initials: R
authors.lastname: Zittoun
mesh_terms: D001327:Autoimmune Diseases / Q000150:complications; D003174:Complement C1 Inactivator Proteins / Q000172:deficiency; D004912:Erythrocytes / Q000276:immunology; D005260:Female; D006801:Humans; D007154:Immune System Diseases / Q000150:complications*; D016682:Lupus Coagulation Inhibitor / Q000097:blood; D008875:Middle Aged; D013163:Splenomegaly / Q000150:complications*; D008258:Waldenstrom Macroglobulinemia / Q000276:immunology*
chemical_list: D003174:Complement C1 Inactivator Proteins; D016682:Lupus Coagulation Inhibitor