A 58-year-old woman presented with complaints of dull left orbital pain the day before. She had a significant history of migraines, hypertension, and diabetes mellitus. Moreover, her examination reveals complete left-side ptosis, 2 mm of anisocoria (left pupil larger than right), and impaired left ocular motility. In addition, she cannot adduct the eye past the primary position, has impaired upgaze, and develops intorsion on attempted downgaze.
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