Visibility of the temporal horns on computed tomography

Area of Science:

• Radiology
• Neuroimaging
• Anatomy

Background:

• Temporal horns are key landmarks in neuroimaging.
• Variations in their appearance can indicate underlying pathologies.
• Computed tomography (CT) is a primary tool for visualizing brain structures.

Purpose of the Study:

• To analyze the relationship between temporal horn morphology on CT scans and patient diagnoses.
• To identify CT imaging features indicative of specific neurological conditions.

Main Methods:

• Retrospective review of CT scans from 958 patients (557 without visible temporal horns, 401 with visible temporal horns).
• Correlation of temporal horn size and symmetry with probable clinical diagnoses.
• Analysis of cases with bilateral or unilateral temporal horn widening.

Main Results:

• Bilateral temporal horn widening was associated with hydrocephalus from various causes.
• Unilateral widening correlated with unilateral masses, regional atrophy, or isolated temporal horn abnormalities.
• Extremely small temporal horns were observed in some normal examinations.

Conclusions:

• Temporal horn size and symmetry on CT scans are valuable indicators of neurological conditions like hydrocephalus and focal brain lesions.
• Understanding normal variations, including extremely small temporal horns, is crucial for accurate diagnosis.