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Corneomandibular reflex: Anatomical basis.

Michele Pistacchi1, Manuela Gioulis2, Davide Mazzon3

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|January 12, 2016
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The Corneomandibular reflex indicates severe brainstem damage and aids in diagnosing neurological injuries. This pathological sign helps localize brain lesions and assess coma depth.

Keywords:
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Area of Science:

  • Neurology
  • Neuroscience
  • Clinical Medicine

Background:

  • The Corneomandibular reflex is a pathological exteroceptive reflex.
  • It is associated with lesions in the precentro bulbar tract.

Observation:

  • This reflex was observed in a patient with severe brain damage.
  • It is a valuable sign in clinical neurological assessment.

Findings:

  • The Corneomandibular reflex aids in distinguishing central neurological injuries from metabolic disorders in comatose patients.
  • It helps localize lesions to the upper brainstem and determine coma depth and evolution.
  • The sign indicates uncal or transtentorial herniation and supraspinal impairment in conditions like ALS and MS.

Implications:

  • The Corneomandibular reflex is crucial for prognosis establishment in patients with severe brain damage.
  • It provides critical information for diagnosing and managing acute neurological conditions.
  • Understanding this reflex enhances the diagnostic capabilities for brainstem and supraspinal lesions.