CONCLUSIONS: Lateral spread is the most common spread direction in nasopharyngeal carcinoma, followed by posterior spread, median spread, inferior spread, anterior spread, superior spread in turn.

• 结论：向外侧方侵犯是鼻咽癌最常见的侵犯方向，其次是向后方侵犯，其后依次是内侧方、下方、前方、上方。