Fig. 2From: Fibrin-associated diffuse large B-cell lymphoma in a hemorrhagic cranial arachnoid cystMicroscopic pathology. Islands of atypical blastic lymphoid cells are embedded in abundant fibrin (a). The cells are diffusely positive for CD20 (b), highly proliferative in the Mib-1 (c) stain and show strong positivity for BCL2 (d), IRF-4 (e) and EBV-associated RNA (f). Scale bars represent 30 μmBack to article page