<h4>Objective</h4>To investigate the expression of the lactate transport-related proteins MCT1, MCT4, and their chaperone CD147 in follicular lymphoma (FL), and to delineate their potential correlations with clinicopathological parameters predictive of prognosis.<h4>Methods</h4>Immunohistochemistry was employed to evaluate the expression of MCT1, MCT4, and CD147 in tumor cells. The gene discussed is BSG; the disease is follicular lymphoma.