The mnemonic
NVA
What each word stands for
- NFacial nerve, most superficial
- VRetromandibular vein
- AExternal carotid artery, deepest
Why it matters clinically
Guides the plane of dissection in parotidectomy.
Where it stops being reliable
Does not list lymph nodes or the glandular lobes.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.