PMC9852763_01
(A) Preoperative head magnetic resonance imaging of the patient. (B) The left vertebral artery and left glossopharyngeal nerve were clearly visible under the endoscopic view. (C) The Teflon pad was placed between the left glossopharyngeal nerve and the left vertebral artery under the endoscopic view. Red circle indicates posterior cranial nerve was compressed by the left vertebral artery, red arrow indicates the left vertebral artery, blue arrow indicates the left glossopharyngeal nerve and the yellow arrow indicates the Teflon pad.
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F1
Preoperative magnetic resonance imaging (MRI) of the head showed that the left vertebral artery compressed the posterior group of cranial nerves (Figure 1A). Intraoperatively it was seen that the left vertebral artery was in close contact with the glossopharyngeal nerve root (Figure 1B), and the root of the glossopharyngeal nerve was compressed. A Teflon pad was placed between the offending blood vessel and the glossopharyngeal nerve roots (Figure 1C), and hemostatic gauze covered the surface of the cerebellum.