Profuse diarrhea after autologous stem cell transplantation for peripheral T-cell lymphoma, not otherwise specified: a case report.

We report the case of a 59-year-old patient with a history of peripheral T-cell lymphoma, not otherwise specified (PTCLNOS) presenting with profuse diarrhea 3 months after completing lymphoma treatment. After exhaustive workup a recurrence of the peripheral T-cell lymphoma in the gastrointestinal tract was diagnosed. Predominant gastrointestinal recurrence is a unique presentation of relapse of PTCL-NOS. To the best of our knowledge, no other case reports have covered predominant gastrointestinal recurrence of PTCL-NOS so far.