Long-Term Survival of Primary Intracranial Plasmablastic Lymphoma: Case Report and Review of the Literature.

Background Primary intracranial plasmablastic lymphoma (PIPBL) is a rare malignant tumor. Case Description We present a case of PIPBL in a 32-year-old man who complained of a progressive growing, painful mass on the right parieto-occipital part of head. Computed tomography and magnetic resonance imaging revealed a homogeneously enhanced mass with partial bone destruction. The patient underwent total resection and cranioplasty in one stage. Histopathologic examination showed large tumor cells with immunoblast-like nuclei. Immunohistochemical staining displayed CD38(+), CD138(+), Mum-1(+), CD20(−), and PAX-5(−). The patient received chemotherapy. The patient has survived more than 3.5 years after operation, with follow-up. We also review the clinical data, molecular pathologic traits, treatment, and prognosis of additional 6 cases with PIPBL in the literature. Conclusions This study provides important clinical information for the diagnosis and treatment of PIPBL.