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Parasellar syndromes.

Janine L Johnston1

  • 1Department of Medicine, University of Manitoba, 706-233 Kennedy Street, Winnipeg, Manitoba, R3C 3J5 Canada. novl@shaw.ca

Current Neurology and Neuroscience Reports
|August 10, 2002
PubMed
Summary
This summary is machine-generated.

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Parasellar syndromes involve cranial nerves within the cavernous sinus, causing symptoms like ophthalmoplegia and facial pain. Causes include tumors, aneurysms, and inflammatory conditions, diagnosed with MRI and treated based on the specific cause.

Area of Science:

  • Neuroanatomy
  • Neurology
  • Vascular Surgery

Background:

  • The parasellar region, adjacent to the sella turcica, contains critical neurovascular structures.
  • The cavernous sinuses are key anatomical features housing the intracavernous internal carotid artery and cranial nerves III, IV, V, and VI.

Observation:

  • Parasellar syndromes manifest with distinctive clinical features due to damage to these cranial nerves.
  • Ophthalmoplegia results from ocular motor nerve involvement, while facial pain and sensory disturbances stem from trigeminal nerve (cranial nerve V) compromise.

Findings:

  • Common causes of parasellar syndromes include tumors (e.g., meningiomas), aneurysms, carotid-cavernous fistulas, cavernous sinus thrombosis, Tolosa-Hunt syndrome, ischemia, and infections.
  • Magnetic resonance imaging (MRI) is the primary diagnostic tool for evaluating parasellar pathologies.

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Implications:

  • Treatment is etiology-specific, encompassing medical management and increasingly aggressive endoscopic, microsurgical, and radiosurgical interventions.
  • Understanding the intricate anatomy of the parasellar region is crucial for diagnosing and managing these complex syndromes.