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What is In extended supraomohyoid neck dissection, lymph Node dissection is done up to: and explain in detail?
Selective Neck Dissection - Supraomohyoid neck dissection: Removal of level I-III LNs - Extended supraomohyoid neck dissection: Removal of level I-IV LNs - Posterolateral Neck Dissection: Removal of level II-V LNs + suboccipital LNs + retro auricular LNs - Lateral neck dissection: removal of level II-V LNs + Internal jugular vein - Central compament neck dissection: Removal of level VI LNs