In selective neck dissection for a clinically N0 neck in supraglottic carcinoma, which lymph node levels are routinely dissected?

• A Levels I, II, III
• B Levels II, III, IV ✓
• C Levels II, III, IV, V
• D Levels I, II, III, IV, V (modified radical)

Explanation

Supraglottic laryngeal carcinoma has primary lymphatic drainage to levels II, III, and IV (anterolateral neck nodes). Selective neck dissection for N0 supraglottic tumors routinely removes these three levels bilaterally due to high risk of occult nodal disease. Level I is primarily for oral cavity tumors; level V for posterior triangle tumors. Modified radical neck dissection removes all five levels and is reserved for clinically N+ disease.

Reference: Dhingra Diseases of Ear, Nose and Throat, 7th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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