Cingulate (Subfalcine) Herniation

Overview


Plain-Language Overview

A Cingulate (Subfalcine) Herniation occurs when part of the brain called the cingulate gyrus is pushed under a rigid structure called the falx cerebri. This happens due to increased pressure inside the skull, often from swelling or bleeding in the brain. The brain is part of the central nervous system, which controls all body functions. When the cingulate gyrus shifts, it can compress important blood vessels and brain tissue, leading to symptoms like headache, weakness on one side of the body, and changes in consciousness. This condition is serious because it can cause further brain injury if not recognized and treated promptly.

Clinical Definition

Cingulate (Subfalcine) Herniation is a type of brain herniation characterized by the displacement of the cingulate gyrus beneath the falx cerebri due to increased intracranial pressure. It typically results from unilateral cerebral hemisphere swelling caused by trauma, hemorrhage, tumor, or cerebral edema. This herniation compresses the anterior cerebral artery, potentially causing ischemia in its vascular territory. Clinically, it may present with contralateral leg weakness due to involvement of the medial frontal lobe. It is an early form of brain herniation and can progress to more severe herniations if intracranial pressure is not controlled. Recognition is critical as it indicates significant intracranial pathology requiring urgent intervention.

Clinical Presentation


Diagnostic Workup


Pathophysiology


Treatments


Prevention


Outcome & Complications


Differential Diagnoses


Medical Disclaimer: The content on this site is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you think you may be experiencing a medical emergency, call 911 or your local emergency number immediately. Always consult a licensed healthcare professional with questions about a medical condition.

Artificial Intelligence Use: Portions of this site’s content were generated or assisted by AI and reviewed by Erik Romano, MD; however, errors or omissions may occur.

Analytics Disclosure: If you allow analytics cookies, Doctogenic uses Google Analytics, Microsoft Application Insights, and Microsoft Clarity to understand site usage, diagnose issues, review heatmaps and session replay recordings, and improve the service on pages where those tools are enabled. Clarity is not enabled on account, purchase, billing, checkout, Stripe-related, or admin pages. You can change this choice through Cookie preferences.

USMLE® is a registered trademark of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). Doctogenic and Roscoe & Romano are not affiliated with, sponsored by, or endorsed by the USMLE, FSMB, or NBME. Neither FSMB nor NBME has reviewed or approved this content. "USMLE Step 1" and "USMLE Step 2 CK" are used only to identify the relevant examinations.