CD40LG and Miyoshi myopathy: At the time of initial diagnosis of MM, the median age was 67 years, 54% were males, and most had IgG ΜΜ (55.6%) followed by IgA (26.1%), light chain only (10.6%), IgD (2.4%), non-secretory (1%), and IgM (0.5%) myeloma.