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  • Title: Diagnostic pitfalls: posterior ischemic optic neuropathy mimicking optic neuritis.
    Author: Lysandropoulos AP, Carota A.
    Journal: Clin Neurol Neurosurg; 2011 Feb; 113(2):162-3. PubMed ID: 21056537.
    Abstract:
    In young people, the most frequent cause of isolated monocular visual loss due to an optic neuropathy is optic neuritis. We present the case of a 27 year old woman who presented monocular visual loss, excruciating orbital pain and unusual temporal headache. The initial diagnosis of optic neuritis revealed later to be a posterior ischemic optic neuropathy (PION). In this case, PION was the first unique presentation of a non-traumatic carotid dissection, and it was followed 24h later by an ischemic stroke. Sudden monocular visual loss associated with a new-onset headache are clinical symptoms that should immediately prompt to a carotid dissection.
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