Interhemispheric subdural empyema: neuroradiological diagnosis

Area of Science:

• Neurology
• Radiology
• Infectious Diseases

Background:

• Subdural empyema is a rare but serious intracranial infection.
• Interhemispheric subdural empyema presents unique diagnostic challenges.

Observation:

• A case of subdural empyema located in the interhemispheric subdural space is presented.
• Computed Tomography (CT) scans demonstrated utility in diagnosing and monitoring intracranial inflammatory conditions.
• Selective angiography aided in localizing the abscess within the interhemispheric subdural space, near the falx and tentorium.

Findings:

• Hypertrophied tentorial meningeal arteries and vascular displacement were key angiographic indicators.
• CT imaging proved effective for follow-up of the cerebral abscess, especially after contrast injection.

Implications:

• This case underscores the importance of multi-modal imaging in diagnosing complex subdural empyemas.
• Accurate localization via angiography is vital for effective treatment planning.
• CT scans serve as a valuable tool for monitoring treatment response in intracranial infections.