Abstract
Plasmablastic lymphoma (PBL) is an unusual non-Hodgkin lymphoma (NHL) most commonly found in the head and neck region. The majority of cases are seen in adult HIV-positive patients, although PBL has been reported in HIV-negative patients. The diagnosis of PBL serves as an AIDS-defining illness. We report a case of PBL localized to the oral cavity in a previously undiagnosed AIDS patient. The lesion manifested as solitary, ulcerated, and markedly tender. PBL was confirmed by immunohistochemical profile and subsequent tests confirmed AIDS diagnosis. The patient was prescribed highly active antiretroviral therapy (HAART) and concomitant local low dose radiation therapy prior to initiation of chemotherapy. Complete local clinical response was observed after 4 weeks of treatment with HAART and radiation therapy. The response sustained in this patient in the subsequent 11 months following diagnosis. The diagnosis of PBL has a unique immunophenotypic profile and should raise suspicion for AIDS in these patients. HAART added to treatment has shown improved survival.
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