Structure preserved in Radical Neck Node dissection:: (A) Vagus nerve, (B) Spinal Accessory Nerve, (C) Internal Jugular Vein, (D) Sterno cleido mastoid muscle
Answer is A. Ans. (a) Vagus nerve(Ref Sabiston 20th Edition Page 794)* Standard RND (CRILE operation) removes nodal levels I through V and the sternocleidomastoid muscle, internal jugular vein, cranial nerve XI, cervical plexus, and submandibular gland.* Modified RND (Bocca Operation) preserves one or more of the three structures - SCM, IJV and Spinal Accessory nerve.