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  • Title: [2 cases of multiple myeloma with osteosclerosis].
    Author: Felder M, Keiser G, Wirth W.
    Journal: Schweiz Med Wochenschr; 1979 Nov 17; 109(44):1713-9. PubMed ID: 524105.
    Abstract:
    A report on two patients with osteoclerotic myeloma is presented (myeloma with osteoblastic lesions). In case one, metastatic bone tumor of unknown origin was wrongly diagnosed initially. Because of increasing neurological symptoms laminectomy was performed. Biopsy led to the correct diagnosis of multiple myeloma of IgA-type. Patient also had a very severe peripheral neuropathy. The second patient had pancytopenia and osteosclerotic lesions of the pelvis. Bone marrow aspiration revealed so-called "empty marrow". Based on these findings, myelofibrosis was wrongly diagnosed at another hospital. Bone marrow aspiration, paper- and immunoelectrophoresis subsequently produced the correct diagnosis of multiple myeloma of IgG-type. Multiple myeloma usually is characterized by osteolytic lesions of the bones. However, the literature contains some 50 cases with osteosclerotic multiple myeloma, three different forms of which are described. In a fairly large percentage osteosclerotic multiple myeloma is combined with periphereal polyneuropathy. It would appear that in IgE-myeloma the incidence of sclerotic lesions is higher. Osteosclerotic multiple myeloma is very rare. It should however be considered if the differential diagnosis of osteosclerotic bone lesions is established.
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