[Clinicopathological Evaluation of Preoperative Chemotherapy Containing S-1 as a Treatment for Patients with Oral Squamous Cell Carcinoma during Waiting Time for Surgery].

Background: In our department, patients with oral squamous cell carcinoma(OSCC)received preoperative chemotherapy containing S-1 to prevent the growth and dissemination of tumors during the waiting time before definitive surgery. We retrospectively evaluated the usefulness of this treatment.

Patients And Methods: One hundred and five patients comprising stages T1(26), T2(64), T3(7), and T4(8 cases)were enrolled in this study from July 2001 to June 2013.

Plasmablastic lymphoma in an elderly immunocompetent patient.

Plasmablastic lymphoma (PBL) is a distinct type of diffuse B cell lymphoma that typically occurs in the oral cavity of patients with HIV infection or immunodeficiency status. PBL is characterized by its plasmablastic morphology and an immunophenotype indicative of a plasma cell differentiation. We present a case of a 75-year-old HIV-negative and Epstein-Barr virus (EBV)-negative patient presenting with an isolated oral cavity mass.