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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: Am J Surg Pathol. 2011 Aug;35(8):1214–1225. doi: 10.1097/PAS.0b013e31822067d1

Figure 3. T-cell lymphoma of γδ origin with intestinal involvement. Type II variant of enteropathy-associated T-cell lymphoma.

Figure 3

A) The tumor surround mucosal crypts with intraepithelial involvement (H&EX20) B) Monotonous lymphoid infiltrate of small medium sized tumor cells (H&E X60) The atypical lymphocytes are C) CD8 positive (X10), D) CD5 negative (X10) and E) CD56 positive (X40) F) Neoplastic lymphocytes have an activated cytotoxic phenotype with granzyme-B expression (X60) G) Reactive lymphocytes are positive for TCRβ that is absent in tumor cells (X40) H) Homogenous TCRδ expression is observed in the tumor (X60)