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Abstract The clinical features and disease course of 29 consecutive multiple myeloma patients without monoclonal globulins are described. This variant accounted for 4.7% of all patients with this disease referred over a 17 year time span. Despite bone marrow plasmacytosis and multiple bone lesions in all, hemoglobin levels were less frequently depressed and immunoglobulin values more frequently preserved in comparison with typical myeloma patients. A low tumor mass was defined in 69%, in comparison with 24% of those with evidence of myeloma protein production. Such earlier disease contributed to the long median survival of 39 months in these patients, a duration about 1 year longer than that of typical patients.
Dreicer et al. (Wed,) studied this question.