Multiple myeloma and AL amyloidosis ... in males than females. biopsy, to check for amyloid protein, which may take fat from the abdomen or tissue from the bone marrow In rare cases, doctors ...

Multiple myeloma is a rare type of cancer. It starts with the uncontrolled production of plasma cells. These are a type of white blood cell in the bone marrow. Healthy plasma cells make antibodies ...

The diagnosis of multiple myeloma with AL-kappa expression was confirmed by bone marrow biopsy. Computerized tomographic scanning of the whole body yielded no evidence of osteolytic bone lesions.