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Cavernous sinus thrombosis — ABEM Board MCQ

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HardNeurological emergenciesCavernous sinus thrombosisABEM Board

A 32-year-old woman arrives with fever, severe headache, and eye swelling after facial cellulitis. Triage acuity is ESI 2; T 102.6 F, HR 122/min. She has proptosis, chemosis, ophthalmoplegia, and decreased sensation over V1/V2. Visual acuity is reduced. Which of the following is the most likely diagnosis?

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Correct answer: C — Cavernous sinus thrombosis

Fever, proptosis, ophthalmoplegia, V1/V2 sensory changes, and recent facial infection suggest cavernous sinus thrombosis.

Reference: IDSA skin and soft tissue infection guidance; emergency neurology references