An elderly male presented with history of intractable diarrhea. His bone marrow and renal biopsy as shown below. Which of the following is the most appropriate diagnosis?
Leishmaniasis
Multiple myeloma
Lymphoma
Urate nephropathy
Ans. (b) Multiple myeloma(Ref: R 9/ 595)Key to the image: 1 - Increase in plasma cells in marrow, 2 - Kidney biopsy with pink deposits in glomerulus, 3 - Fibrils in electron microscope. So the diagnosis is Multiple myeloma, probably AL amyloidosis of kidney
Misc. (W.B.C)