RESUMEN
Plasmablastic lymphoma (PBL) is an uncommon and aggressive large B-cell lymphoma commonly diagnosed in human immunodeficiency virus-positive patients. Though the oral cavity is a common site for PBL, this condition is not commonly reported in the literature as an oral manifestation. Most oral PBLs presented as an asymptomatic swelling, frequently associated with ulcerations and bleeding. No standard treatment is yet advocated for oral PBL. Five-year survival rate was recorded not more than 33.5%. This presentation emphasizes on oral manifestation of plasmablastic lymphoma (PBL) as a rare entity, which was provisionally diagnosed for carcinoma (CA) oral cavity. A simple presentation of ulcerated growth in the upper jaw was excised for histopathologic evaluation. Subsequently, it turned out to be a rare oral manifestation of HIV-related lymphoma. It is imperative to understand simple oral presentation as a manifestation of an underlying systemic condition. With this interest, this case presentation is published with a literature review.