CD274 and Miyoshi myopathy: The association between the expression of PD-L1 and the prognosis of tumors was also described in a recent study from Lee BH et al. [45] who developed a prognostic nomogram, finding that a combination of PD-L1 expression in PCs evaluated by the quantitative immunofluorescence (QIF) method, and clinical parameters (age, cytogenetics, and lactate dehydrogenase) effectively predicted poor prognosis in newly diagnosed MM.