Primary non-Hodgkin lymphoma presenting as ileocolic intussusception.

We report the case of an HIV-seropositive patient with non-Hodgkin lymphoma of the small intestine who presented with an ileocolic intussusception. This lesion fulfilled the diagnostic criteria for primary gastrointestinal lymphoma. Such a neoplasm in an immuno-compromised patient is usually more aggressive and less responsive to treatment than in an HIV-seronegative patient.