Primary Nodal EBV-Positive T-Cell/NK-Cell Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** An EBV-positive T-cell/NK-cell lymphoma that arises from the lymph nodes. It is characterized by a monomorphic pattern of infiltration and abscence of the angiodestruction and necrosis seen in extranodal NK/T-cell lymphomas. These lymphomas are more common in elderly patient, or in the setting of immune deficiency. (WHO 2017)

**Synonyms:** - EBV-Positive Nodal T-and NK-Cell Lymphoma - Node-Based EBV-Positive Peripheral T-Cell Lymphoma - Node-Based Epstein-Barr Virus -Positive Peripheral T-Cell Lymphoma - Primary EBV-Positive Nodal T-Cell or NK-Cell Lymphoma - Primary Nodal EBV-Positive T-Cell or NK-Cell Lymphoma - Primary Nodal Epstein-Barr Virus-Positive T-Cell/NK-Cell Lymphoma