Infrafacial triangle

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The infrafacial triangle is considered a safe entry zone to the brainstem via the fourth ventricle.

Boundaries

The infrafacial triangle is bounded as follows1:

Figure

Infrafacial triangle
Schematic illustration of the infrafacial triangle and its anatomical boundaries. Figure adapted from Kyoshima et al. 1993.

References

    1. Kyoshima, Kazuhiko, et al. "A study of safe entry zones via the floor of the fourth ventricle for brain-stem lesions: report of three cases." Journal of neurosurgery 78.6 (1993): 987-993. ↩ ↩

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