In modified radical neck dissection, the structure preserved is:

 # In modified radical neck dissection, the structure preserved is:

A. Submandibular gland

B. Spinal accessory nerve

C. Sternocleidomastoid muscle

D. Internal jugular vein

The correct answer is A. Submandibular gland.

Radical neck dissection (RND)

Removal of all cervical lymphatics and lymph nodes from level IV, with sacrifice of the spinal accessory nerve, the sternocleidomastoid muscle and the internal jugular vein.

Modified radical neck dissection (MRND)

Involves the removal of cervical lymphatics and lymph nodes from levels IV along with one or more of the non lymphatic structures mentioned below:

• The spinal accessory nerve (SAN)

• The internal jugular vein (IJV)

• The sternocleidomastoid muscle (SCM)

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