“…The preliminary data available suggest that amyloid deposition in the marrow of myeloma patients is frequent, as it can be traced in nearly 40% of cases. We failed to find correlations between bone marrow amyloid deposits and immunoglobulin type, disease stage, plasma cells percentage, hemoglobin, calcium, creatinine, albumin, orIntroduction AL amyloidosis is the most frequent type of systemic amyloidosis in Western countries [1]. It is caused by tissueinfiltrating proteins derived from monoclonal immunoglobulin light chains, frequently observed in patients affected by multiple myeloma (MM) or, less frequently, by Waldenström's macroglobulinemia or other lymphoproliferative disorders [2].…”