CNS pathology is classified into hemorrhagic disorders (epidural, subdural, and subarachnoid), infectious meningitis etiologies based on pathogen type, neurodegenerative prion diseases driven by protein misfolding mechanisms, and primary glial neoplasms. The core theoretical frameworks define specific disease entities through distinct pathological signatures such as the *PRP^Sc* accumulation in transmissible spongiform encephalopathies (TSEs) characterized by vacuolar brain damage, CSF biochemistry profiles used to differentiate bacterial versus viral meningitis via glucose and protein levels, and histological markers like Rosenthal fibers or perivascular pseudorosettes that identify specific tumor grades. These concepts operate within the domain of neuropathology as a sub-discipline of pathology and medicine, establishing causal links between structural changes (e.g., beta-pleated sheet formation), cellular disruptions (e.g., bridging vein rupture), and clinical manifestations such as herniation syndromes or thunderclap headaches.
CNS pathology is classified into hemorrhagic disorders (epidural, subdural, and subarachnoid), infectious meningitis etiologies based on pathogen type, neurodegenerative prion diseases driven by prot…