Infarct versus neoplasm on CT: four helpful signs

Area of Science:

• Neurology
• Radiology
• Medical Imaging

Background:

• Distinguishing between cerebral infarction and neoplasms on CT scans is crucial for timely and appropriate patient management.
• Computed tomography (CT) is a widely used imaging modality in neurological diagnostics.

Purpose of the Study:

• To identify distinct computed tomographic (CT) imaging features that differentiate recent cerebral infarction from cerebral neoplasms.
• To aid clinicians in the differential diagnosis of acute brain lesions.

Main Methods:

• Retrospective analysis of computed tomographic (CT) findings.
• Comparison of imaging characteristics in two patient cohorts: recent cerebral infarction (n=35) and cerebral neoplasms (n=65).

Main Results:

• Cerebral infarcts were characterized by gray-matter enhancement and sparing of the thalamus.
• Cerebral neoplasms were associated with white-matter edema and ring enhancement, typically located within the white matter.

Conclusions:

• Specific CT findings can reliably distinguish between recent cerebral infarction and cerebral neoplasms.
• Gray-matter enhancement and thalamus sparing suggest infarction, whereas white-matter edema and ring enhancement favor neoplasm.