Diffuse large B cell lymphoma (DLBCL) is a subtype of non-Hodgkin lymphoma (NHL) characterized by large B lymphoid cells, where the nucleus exceeds the size of a normal lymphocyte nucleus, exhibiting a spectrum of cellular progenitors and consistent nuclear morphology. Platelets and lymphocytes are commonly assessed to predict the prognosis of DLBCL patients. The platelet-to-lymphocyte ratio (P…