Isolated oculomotor nerve palsy is a rare clinical condition in children. We describe a case of 2-year-old female with no significant past medical problems who presented with acute onset pupil-sparing third nerve palsy. Magnetic resonance imaging with contrast revealed enhancement of the third nerve, but multiple investigations including spinal fluid analysis failed to identify the cause of her symptoms. Continued investigation of future cases and advancement in our understanding of the basic biology of the third nerve are needed to understand this rare condition.
- Oculomotor nerve