A case of peripheral T-cell lymphoma affecting the small bowel of a 5-year-old boy is reported. The cells did not form a tumoral mass but infiltrated diffusely, arranged in an angiocentric pattern and associated with numerous ulcers, one of which perforated. Immunohistochemistry proved them to be CD45RO-, CD3-, and CD8-positive. CD20, CD4, and CD56 markers were negative. The presence of EBV in the lymphomatous cells was demonstrated by in-situ hybridization. Polymerase chain reaction study revealed T-cell receptor (TCR) gene rearrangement. Notably the hemophagocytic syndrome present on admission reverted after surgery. The authors are not aware of a previous report of intestinal T-cell lymphoma in a child.
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