569 / 1311
American Head Neck Society Neck Dissection Classification
(2008)
Type
Description
Comprehensive
Radical
Removal of lymph nodes from levels I-V,
the sternocleidomastoid muscle,
the spinal accessory nerve, and
the internal jugular vein
Modified radical As radical with preservation of at least 1 non-
lymphatic structure
Extended
Removal of additional lymph node levels and/or
non-lymphatic structures (e.g., muscle, blood
vessel, nerves)
Selective
Preservation of 1 or more lymph node levels
Robbins
et al.
Arch Otolaryngol Head Neck Surg
2008;134:
536–538.