Presumed Pediatric Isolated Oculomotor Nerve Schwannoma - A Case Report.

This report presents a healthy 2.5-year-old child exhibiting headache, ptosis, exotropia, and left mydriasis. Initial neuroimaging, including computed tomography (CT), computed tomography angiography (CTA), and standardized magnetic resonance imaging (MRI), failed to identify any lesions; however, high-resolution MRI revealed an ovoid mass adjacent to the left proximal oculomotor nerve within the superior cavernous sinus. This case underscores the necessity for advanced imaging techniques and a thorough diagnostic approach to enhance understanding of this rare pediatric condition. Moreover, it highlights the limited documentation of pediatric oculomotor schwannomas, leading to an inadequate understanding of their diagnosis and management, and emphasizes the need for enhanced awareness and research to establish effective diagnostic protocols, particularly utilizing advanced neuroimaging techniques.