title: Multiple myeloma in three siblings.
abstract: All three siblings of a family developed multiple myeloma. Two siblings had a history of monoclonal gammopathy; in one of these two siblings and in the third sibling, the disease progressed rapidly. A review of the literature shows that of 38 previously reported pairs of siblings with plasma cell disorders, eight families had a third affected sibling and four another affected relative. This clinical clustering suggests that some cases of multiple myeloma may have a hereditary basis and that other family members may be at risk for developing the disease.
mesh_terms: D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007145:Immunoglobulin kappa-Chains / Q000652:urine; D008297:Male; D008875:Middle Aged; D009101:Multiple Myeloma / Q000188:drug therapy / Q000235:genetics*
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007145:Immunoglobulin kappa-Chains