Evidence grade: WEAK — Supported only by weak or preliminary evidence.
computed from the encoded evidence by the Atlas grading rule.
Dedicated MRI depicts named-nerve PNS (V/VII) and changes radiation volumes and prognosis
Sensitivity is protocol- and reader-dependent, early/skip PNS is missed, and no standardized reporting exists
Missed PNS undertreats and worsens recurrence; over-call expands radiation fields unnecessarily.
This is an educational research resource from Resonant Labs, not clinical advice. Evidence grades and controversies are summarized from the literature and may change as the field evolves.