Histology of enteropathy-associated T cell lymphoma

(A) The cells are large with irregularly shaped or angulated nuclei and a variable amount of cytoplasm (magnification, 250x). (B) The cells in this case expressed CD30 (magnification, 250x). The mucosa adjacent to the tumor had shortened villi (C; magnification, 100x) and "top-heavy" intra-epithelial infiltration by T cells (D; CD3 staining, magnification, 100x).