Composite Lymphoma Comprising Extranodal NK/T-Cell Lymphoma and Diffuse Large B-Cell Lymphoma

Figure 2

Pathological examinations of the lung (a–e) and gastric (f–j) lesions. (a, f) 100× magnification; (b, g) 400× magnification; other images 200× magnification. (a, b, f, g) Hematoxylin and eosin staining; (c–e, h–j) immunohistochemical staining. (a, b) Multiple lesions in the lungs show destruction of the pulmonary lobes and replacement with large tumor cells. (c) Tumor cells appear CD3-positive. (d) Tumor cells appear CD20-negative. (e) Tumor cells appear EBER-positive. (f, g) In the gastric lesion, tumor cells have infiltrated the mucosal epithelium. (h) Tumor cells appear CD3-negative. (i) Tumor cells appear CD20-positive. (j) Tumor cells appear EBER-negative.