Figure 1.

Neoplastic and non-neoplastic localized lesions in renal transplant recipients. (A) adenocarcinoma with predominantly micropapillary pattern (case 22, hematoxylin-eosin, original magnification x200); (B) lymphomatoid granulomatosis showing angiocentric proliferation of atypical lymphoid cells associated with Epstein-Bar virus (C), (case 25, hematoxylin-eosin and colorimetric in situ hybridization, original magnification x200 and x400, respectively); necrotizing granuloma (D) associated with Pneumocystis jiroveci (case 21, hematoxylin-eosin and Gomori methenamine silver, inset, original magnification x100 and x600, respectively).