nonCNS
nonCNS is an informal shorthand used in medical and research contexts to denote lesions, diseases, or processes that occur outside the central nervous system (CNS), which comprises the brain and spinal cord. The term helps distinguish noncentral nervous system involvement from CNS involvement in diagnostics, staging, and treatment planning.
In oncology, nonCNS typically refers to metastases or primary tumors located outside the CNS. Common nonCNS
Diagnostic approaches for nonCNS disease rely on imaging modalities such as computed tomography (CT), magnetic resonance
Terminology considerations emphasize that nonCNS is not a formal pathologic category but a descriptors used in