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Successful treatment of immunoglobulin D myeloma by bortezomib and dexamethasone therapy
Naohiro Sekiguchi1, Naoki Takezako, Akihisa Nagata
1Hematology Division, National Hospital Organization Disaster Medical Center, Japan. nao26@aol.com
Abstract:
Immunoglobulin D (IgD) myeloma is a rare subtype and it is widely accepted as an aggressive disease. Here, we report a 66-year-old woman with IgD myeloma who had anemia, lumbago, multiple osteolytic lesions and hypercalcemia. The patient refused a blood transfusion because of her beliefs, so we administered bortezomib and dexamethasone (BD) after high-dose dexamethasone therapy. Marked improvement of anemia and elevated serum alkaline phosphatase levels was recognized. After 5 cycles of BD therapy, the patient achieved a stringent complete response according to International Myeloma Working Group Response Criteria. BD therapy might be a feasible and useful treatment option for IgD myeloma.
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