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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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All of the following are major criteria for diagnosing Myeloma except?
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The correct answer is  Major criteria for diagnosing myeloma includes presence of plasmacytoma on tissue biopsy, bone marrow plasmacytosis (more than 30%), and serum electrophoresis showing monoclonal immunoglobulin spike. Presence of lytic bone lesions is a minor criteria for diagnosing myeloma. Ref: The Washingtom Manual Of Surgical Pathology: Depament Of Pathology , By Peter A Humphrey, Loius P.Dehner, Ohn D. Pfeifer, Page 565.