CTLA4 and Miyoshi myopathy: We here report on the genotype distribution of six functionally relevant CTLA-4 variants (SNVs −1661A>G, −1577G>A, −658C>T, −319C>T, +49A>G, CT60G>A) in a cohort of 173 MM patients treated with IPI and on their association with response to IPI treatment and OS.