Fig. 2From: Perforation in an intestinal malignant lymphoma casePathological findings at the recurrence (intestine). HE staining showed a diffuse infiltration of morphological large lymphocytes (magnification as noted) (a). Immunochemical staining revealed positive results for CD20 (b) and CD79a (c) and a negative result for EBER (d), phenotypically similar to the primary site, brain (Fig. 1)Back to article page