PMC7568104_01
(a) Left gaze (b) Impaired medial gaze of the left eye on right gaze examination.
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F1
The medial and upward gaze of the left eye was impaired and deviated slightly out and down in the primary position [Figure 1].
Axial planes of preoperative MRI showing with intravenous contrast showing small spherical tumor (10.5.5 mm) abutting anterolateral of the left cerebral peduncle.
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F2
Imaging confirmed a gadolinium-enhanced mass with no dural attachment, suggesting for Schwannoma [Figure 2].
(a) Intraoperative video capture image showing the tumor with the third nerve passing through the tumor. (b) Resected tumor.
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F3
The third nerve ran into the tumor [Figure 3a]. Therefore, the surgeon considered the complete resection of the tumor as the best option for the patient and the tumor, together with the involved part of the oculomotor nerve, was resected [Figure 3b].