A renal biopsy from a 56 year old woman withprogressive renal failure for the past 3 years showsglomerular and vascular deposition of pinkamorphous material. It shows apple-greenbirefringence under polarized light after Congo redstaining. These deposits are positive for lambda lightchains. The person is most likely to suffer from:: (A) Rheumatoid ahritis, (B) Tuberculosis, (C) Systemic lupus erythematosus, (D) Multiple myeloma
Answer is D. Multiple myeloma