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We describe three patients with spontaneous dural carotid cavernous sinus fistula presenting an isolated ophthalmoplegia where magnetic resonance angiography demonstrated abnormal flow-related enhancements in the cavernous sinus with extension into the inferior petrosal sinus. Magnetic resonance angiography is of value in evaluation of patients with isolated ophthalmoplegia.
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Uehara et al. (1998) studied this question.
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