Left-Right Confusion

Diplopia; Frontal headacheA 44-year old female with a 20-year history of migraine with aura. Previous history significant for supraventricular tachycardia triggered by caffeine and peptic ulcer disease. Post-operative, it was elicited that a tooth extraction had been performed a few weeks prior to the onset of frontal headaches without anti-bacterial prophylaxis.Isolated complete left abduction deficit consistent with left VI nerve palsy.CT; MRISeptic inflammation of sphenoid sinusSurgery; Anti-bacterials agents1. Biousse V, Bousser MG. Cerebral venous thrombosis. The Neurologist 1999;5:326-49. 2. Chun CH, Johnson JD, Hofstetter M et al. Brain abscess. A study of 45 consecutive cases. Medicine 1986;65:415-31. 3. Katz BJ. Lesions procedures by infecitons and inflammations of the central nervous system. In: Miller NR, Newman NJ, editors. Walsh and Hoyt's Clinical Neuro-Ophthalmology 5th ed. Baltimore: Williams & Wilkins, 1999; p:3941-4064. 4. Kuehnen J, Schwartz A, Neff W, Hennerici M. Cranial nerve syndrome in thrombosis of the tran-verse/sigmoid sinuses. Brain 1998;121:381-8. 5. Newman NJ, Third, fourth, sixth nerve lesions and the cavernous sinus. In Principles and Practice of Ophthalmology. Albert and Jakobiec Eds. 2nd Ed. Vol. 5 Saunders 1999; pp:3992-4028. 6. Ruelle A, Zerbi D, Zucarello M et al. Brain stem abscess treated successfully with medical therapy. Neurosurgery 1991;28:742-6. 7. Vallee L, Pinton F, Martin BH et al. Brain abscess complicating dental caries in children. Arch Pediatr 1994;1:166-9. 8. Wolh TA. Hemianopia from occipital lobe abscess after dental care? Am J Ophthalmol 1991;112:689-94. 9. Yamamoto M, Jimbo M, Ide M et al. Penetration of antibiotics into brain abscesses. Neurosurgery 1993;33:44-9