Pathology Which of the following is not a major criteria for diagnosis of multiple myeloma ? A Lytic bone lesions B Plasmacytoma on tissue biopsy C Bone marrow plasmacytosis > 30% D `M' spike > 3g% for 1g G, > 2g% for IgA 💡 Explanation Which of the following is not a major criteria for diagnosis of multiple myeloma ? ✓ Correct Answer: C. Bone marrow plasmacytosis > 30%