case_images: PMC8990240_01
case_images: Eye movement of the patient demonstrating right oculomotor nerve palsy.. (
  A) Mild blepharoptosis, limitation of adduction and vertical gaze on the right side on day 30. (
  B) The limitation of adduction and vertical gaze improved and ptosis completely resolved after IVIG treatment (day 52). (
  C) He completely recovered on day 71.
case_images: f1000research-10-123036-g0000.jpg
case_images: PMC8990240_01_f1000research-10-123036-g0000.jpg
case_images: f1
case_images: Neurological examination revealed mild blepharoptosis, limitation of adduction, and vertical gaze on the right side ( Figure 1A) with convergence insufficiency. The limitation of the adduction and vertical gaze markedly improved and ptosis completely resolved on day 52 ( Figure 1B). He completely recovered on day 71 ( Figure 1 C).
case_images: Contrast-enhanced CISS-MRI demonstrates the swelling and enhancement in the right oculomotor nerve (indicated by
  white dotted lines).
case_images: f1000research-10-123036-g0001.jpg
case_images: PMC8990240_01_f1000research-10-123036-g0001.jpg
case_images: f2
case_images: High-resolution, constructive interference in steady-state magnetic resonance imaging (CISS-MRI) showed swelling with gadolinium enhancement in the right cavernous segment of the oculomotor nerve ( Figure 2), but no signs of aneurysm, tumor, and inflammation in the cavernous sinus and orbital apex were noted.