Overall survival according to diffuse areas in grade 3 follicular lymphoma.

(A) Cases with 100% follicular (FL) versus cases with diffuse areas (DFL); (B) all cases divided according to WHO-recommended pattern reporting; (C) all cases that are 50% or less diffuse versus cases that are more than 50% diffuse; (D) FL3 that is more than 50% diffuse compared with a group of 530 similarly treated DLBCL patients.