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Cavernous sinus thrombosis


Definition:

Cavernous sinus thrombosis is a blood clot in an area at the base of the brain that contains a vein, which carries blood from the brain to the heart. This area is called the cavernous sinus.

Causes:

Cavernous sinus thrombosis is usually caused by a bacterial infection that has spread from the sinuses, teeth, ears, eyes, nose, or skin of the face.

You are more likely to get this condition if you have an increased risk of blood clots.

Symptoms:
  • Bulging eyeball, usually on one side of face
  • Cannot move the eye in a particular direction
  • Drooping eyelids
  • Headaches
  • Vision loss
Exams and Tests:

Tests that may be ordered include:

  • CT scan of the head
  • Magnetic resonance imaging (MRI) of the brain
  • Magnetic resonance venogram
  • Sinus x-ray
Treatment:

Cavernous sinus thrombosis is treated with high-dose antibiotics given through a vein (IV).

Sometimes surgery is needed to drain the infection.

Outlook (Prognosis):

Cavernous sinus thrombosis can be deadly if left untreated.

When to Contact a Medical Professional:

Call your doctor right away if you have:

  • Bulging of your eyes
  • Drooping eyelids
  • Eye pain
  • Inability to move your eye in any particular direction
  • Vision loss
References:

Nath A, Berger J. Brain abscess and parameningeal infection. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, PA: Saunders Elsevier; 2011:chap 421.


Review Date: 2/24/2014
Reviewed By: Todd Gersten, MD, Hematology/Oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2002 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

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