Parotid Non-Facial Nerve Structures — MFDS Part 1 MCQ

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ModerateAnatomy (Head & Neck)Parotid Non-Facial Nerve StructuresMFDS Part 1

During a parotidectomy, which of the following structures is classically contained within the parotid gland but is not a branch of the facial nerve?

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Correct answer: D — External carotid artery

The correct answer is D, the external carotid artery. It is a vascular structure classically contained within the parotid gland and is anatomically distinct from the facial nerve. The retromandibular vein is another important non-neural structure within the parotid gland, but it is no longer combined with the artery in the option because the stem asks for one structure. The temporal, zygomatic, buccal and marginal mandibular nerves are all terminal branches of the facial nerve emerging from its intraparotid plexus. They therefore fail the stem requirement even though they are closely related to, and traverse, the gland. Recognition of these intraparotid neurovascular structures is clinically important during parotid surgery.

Reference: Gervasio A, D'Orta G, Mujahed I, Biasio A. Sonographic anatomy of the neck: The suprahyoid region. Journal of Ultrasound. 2011;14(3):130-135. https://pubmed.ncbi.nlm.nih.gov/23396801/