Two Cases of Adult T-cell Leukemia/Lymphoma Involving the Terminal Ileum

We describe two cases of adult T-cell leukemia/lymphoma (ATLL) with terminal ileal involvement. The first case, a 71-year-old man with lymphoma subtype of ATLL, had a polypoid lesion in the terminal ileum, in addition to a duodenal mass. The second case, a 58-year-old woman with lymphoma subtype of ATLL, had an irregular ulcerative lesion in the terminal ileum and multiple ulcers throughout the stomach. Biopsies from these lesions revealed mucosal invasion of ATLL cells in each case. In the second case, combination chemotherapy was transiently effective, resulting in the disappearance of gastric and terminal ileal lesions. Prospective and careful examination of additional cases should further characterize the clinicopathological features of terminal ileal involvement in ATLL.

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