Neck dissection | Indication | Comments |
---|---|---|
RND | Clinically metastatic neck nodes of upper aero-digestive tract | Sternocleidomastoid, accessory nerve, Internal Jugular vein and submandibular gland removed |
MRND TYPE I | As above, when accessory nerve away from nodal disease | Accessory nerve spared. Rest as RND |
MRND TYPE II | Thyroid well differentiated cancer, nodes selectively involving IJV | Sternocleidomastoid, accessory nerve spared. Internal Jugular vein sacrificed. Rest as RND |
MRND TYPE III | Thyroid well differentiated cancer | Sternocleidomastoid, accessory nerve, Internal Jugular vein spared |
EXTENDED RND | Extensive involvement of nodes beyond usual levels or involvement of contiguous organs | Additional lymph nodes** or other non lymphatic structures removed |