CT Brain Plain - Systematic Review

Technical Adequacy

• Non-contrast CT brain, axial sections from skull base to vertex
• Coverage appears complete (cerebellum/posterior fossa through high convexity)
• Image quality adequate for interpretation from photographic representation

Findings

• Gray-white matter differentiation is well preserved throughout both cerebral hemispheres
• No loss of insular ribbon or cortical ribbon
• No focal hypodense (infarct/edema) or hyperdense (hemorrhage/calcification) parenchymal lesions identified

• Lateral ventricles (bilateral), 3rd ventricle, and 4th ventricle are normal in size and configuration
• No ventriculomegaly or asymmetry
• No intraventricular hemorrhage or debris
• No hydrocephalus

• Cerebral sulci and gyri appear age-appropriate - no diffuse sulcal effacement to suggest raised ICP or cerebral edema
• No evidence of significant cortical atrophy
• Basal cisterns (suprasellar, prepontine, ambient, quadrigeminal) are patent and open
• Sylvian fissures appear symmetric

• No acute intracranial hemorrhage - no hyperdense extra-axial collections (subdural, epidural), no subarachnoid blood, no intraparenchymal hematoma
• No acute territorial infarct - no wedge-shaped cortical hypodensity in any vascular territory
• No space-occupying lesion - no tumor, abscess, or cystic lesion

• Midline structures (septum pellucidum, 3rd ventricle, falx) are central
• No midline shift
• No evidence of transtentorial or subfalcine herniation

• Cerebellum and brainstem appear normal in attenuation
• 4th ventricle is in normal position and size

• Bony calvarium appears intact (no obvious fracture on soft-tissue windows)
• Visualized paranasal sinuses and mastoid air cells appear normally aerated - no air-fluid levels or significant mucosal thickening

Impression

Normal non-contrast CT scan of the brain. No acute intracranial hemorrhage, no acute infarct, no space-occupying lesion, no midline shift, no hydrocephalus.

Disclaimer: This analysis is based on a photographic image of CT films viewed on a light box - not DICOM data on a diagnostic workstation. Subtle findings (small lacunes, early ischemic change, thin subdural collections) may not be fully assessable. Formal reporting by a qualified radiologist with access to original DICOM images and clinical correlation is essential before any clinical decision-making.