Primary Central Nervous System Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** A non-Hodgkin or Hodgkin lymphoma that arises from the brain or spinal cord as a primary lesion. There is no evidence of lymphoma outside the central nervous system at the time of diagnosis.

**Synonyms:** - Central Nervous System Lymphoma - Central Nervous System Lymphoma - PCNSL - PCNSL - Primary CNS Lymphoma - Primary CNS lymphoma - primary CNS lymphoma - primary central nervous system lymphoma