Amyloidosis of bone and bone marrow is rarely symptomatic and is generally limited to deposits diagnosed by histological examination. Four cases with lytic bone lesions are reported. In 2 cases, amyloidosis was associated with Waldenstroem's Macroglobulinemia, in one case with multiple myeloma and in 1 case with solitary plasmocytoma. These 4 cases are compared to 14 cases already published in the literature, including 2 cases of plasmocytic dyscrasias. The role of amyloidosis in the genesis of bone lesions is discussed.
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