Fig. 2

Case 4: (I,J) Histopathology under low magnification (10 × 10) and high magnification (10 × 20). (K–P) Immunohistochemical staining: CD20 (K), Ki-67 (L), CD10 (M), BCL-6 (N), MUM1 (O), and Pax-5 (P), all imaged at 10 × 20 magnification.