Head & Neck Oncology · NEET PG Preparation ENT
During a modified radical neck dissection, a surgeon preserves the spinal accessory nerve, the internal jugular vein, and which of the following stru…
Practice question from Head & Neck Oncology (NEET PG Preparation ENT), with the correct answer and a step-by-step solution.
hard · MCQ · Q-E96A62
During a modified radical neck dissection, a surgeon preserves the spinal accessory nerve, the internal jugular vein, and which of the following structures to classify it as a Type I modified radical neck dissection?
- A.Sternocleidomastoid muscleCorrect answer
- B.External jugular vein
- C.Hypoglossal nerve
- D.Omohyoid muscle
Solution
In a Modified Radical Neck Dissection (MRND), lymph node levels I-V are cleared similarly to a radical neck dissection, but non-lymphatic structures are preserved. MRND Type I preserves the spinal accessory nerve; Type II preserves the spinal accessory nerve and internal jugular vein; Type III (functional neck dissection) preserves the spinal accessory nerve, internal jugular vein, and sternocleidomastoid muscle.
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