Reversible rituximab-induced rectal Kaposi ’s sarcoma misdiagnosed as ulcerative colitis in a patient with HIV-negative follicular lymphoma

ConclusionsTo our knowledge, this is the third case of Kaposi ’s sarcoma diagnosed under rituximab in a HIV-negative patient, the first one at the rectal level and the first one that completely regresses after stop of rituximab. This case raises awareness of iatrogenic Kaposi’s sarcoma in HIV-negative patients treated with rituximab, and further highlights the importance of immunosuppression in the pathophysiology of disease.
Source: Clinical Sarcoma Research - Category: Cancer & Oncology Source Type: research