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H&N E02:Foundations II — Cranial Nerves, PNI Highways, and the Skull Base
This is Episode 2: Foundations II — Cranial Nerves, PNI Highways, and the Skull Base.**Last episode, we mapped lymphatics. Today, we map nerves.Because in head and neck oncology, **perineural invasion is not just a pathology word. It is geography.** It is a route problem. When tumor gets into a nerve, it can travel **from a peripheral skin site or gland to the skull base foramina**, and from there into deeper skull base compartments. That is why PNI changes your clinical target volume.
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By Abass ContehThis is Episode 2: Foundations II — Cranial Nerves, PNI Highways, and the Skull Base.**Last episode, we mapped lymphatics. Today, we map nerves.Because in head and neck oncology, **perineural invasion is not just a pathology word. It is geography.** It is a route problem. When tumor gets into a nerve, it can travel **from a peripheral skin site or gland to the skull base foramina**, and from there into deeper skull base compartments. That is why PNI changes your clinical target volume.