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ENT · Salivary glands: facial nerve plane in the parotid
Sample itemDuring superficial parotidectomy, the surgeon identifies the retromandibular vein lying in the parotid substance. What is the relation of this vein to the facial nerve?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. The vein lies deep to the facial nerve branches
The facial nerve divides the parotid into superficial and deep lobes, and the retromandibular vein and external carotid artery lie deep to the nerve. The vein is therefore an anatomical guide to the nerve plane. The nerve is generally found by tracing the main trunk from the stylomastoid foramen.
Option by option
A. The vein crosses only the deep lobe
The vein lies in the plane of the gland.
B. The vein is far medial to the nerve and the gland
The vein runs within the gland.
C. The vein lies superficial to the nerve
The nerve is the most superficial structure.
D. The vein lies deep to the facial nerve branches (correct)
Correct. The vein and artery are deeper than the nerve.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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