Table 2:

Intraoperative location of FN relative to the VS, assessed at the origin of the nerve and in the cisternal passage tract according to the classification of Sampath et al²⁰

Patient	Intraoperative Findings
Patient	FN Origin	FN Passage
1	AI	AM
2	AI	AM
3	AM	P
4	AM	AS
5	AM	AS

Note:—AI indicates anterior-inferior; AM, anterior-medial; AS, anterior-superior; P, posterior.