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  • Title: Bilateral cavernous sinus thromboses and intraorbital abscesses secondary to Streptococcus milleri.
    Author: Watkins LM, Pasternack MS, Banks M, Kousoubris P, Rubin PA.
    Journal: Ophthalmology; 2003 Mar; 110(3):569-74. PubMed ID: 12623823.
    Abstract:
    PURPOSE: To report the first case of bilateral cavernous sinus thromboses and bilateral intraorbital abscesses secondary to Streptococcus milleri. STUDY DESIGN: Single interventional case report. INTERVENTION AND TESTING: The findings of the ophthalmic evaluation, radiographic imaging, medical and surgical intervention, specimen cultures, and clinical course were analyzed. RESULTS: A 17-year-old female had bilateral proptosis, decreased vision in the left eye, and altered mental status at presentation. An orbital compartment syndrome developed in the left eye and purulent material was present after lateral canthotomy, suggestive of an intraorbital abscess. Magnetic resonance imaging (MRI) scans revealed bilateral cavernous sinus thromboses, and subsequent computed tomographic (CT) scans revealed bilateral intraorbital abscesses in the setting of acute ethmoid and sphenoid sinusitis. Antibiotic treatment and surgical drainage of the orbital abscess and sinuses was performed, and specimen cultures revealed S. milleri. After surgery, the patient experienced hearing loss and a right internal capsule infarct, in addition to complete vision loss in the left eye. A second intraorbital abscess developed in the right eye and was drained surgically. The vision remained 20/20. CONCLUSIONS: Streptococcus milleri is a virulent organism with a propensity to form abscesses in multiple areas of the body and should be considered as a possible etiologic agent in abscess formation of the orbit and cavernous sinus thrombosis.
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