Summarize the pathology, etiology, modifiable and nonmodifiable risk factors, pertinent signs and symptoms, diagnostics, treatment regimens to include both pharmacological and nonpharmacological, and nutritional approaches for the following. 

 Diffuse large B cell lymphoma (DLBCL) 

Summarize the pathology, etiology, modifiable and nonmodifiable risk factors, pertinent signs and symptoms, diagnostics, treatment regimens to include both pharmacological and nonpharmacological, and nutritional approaches for the following. Diffuse large B cell lymphoma (DLBCL)