Epilarynx include (s): (LQ)
Ref. Ohingra 6th/ed p 301; Stell and Manran's Head and Neck Surgery 4th/ed p 233
g. The larynx is divided into supraglottis, glottis and subglottic region for
the purpose of classification of its tumor.
The division is based on the lymphatic drainage.
The glottic area has virtually no lymphatic drainage and so acts as a watersheD. The area above the glottis,. supraglottic drains upward via superior lymphatics into the upper deep cervical group of nodes whereas the area below the vocal cords,. subglottic, drains to the prelaryngeal and pretracheal glands.
Classification of sites and various subsities under each site in larynx (AJCC classification, 2002)
Suprahyoid epiglottis (both lingual and laryngeal surfaces)
• Infrahyoid epiglottis
• Aryepiglottic folds (laryngeal aspect only)
• Ventricular bands (or false cords)
True vocal cords including anterior and posterior commissure
Subglottis up to lower border of cricoid cartilage
Suprahyoid epiglottis, infra hyoid epiglottis, aryepiglottic folds and arytenoids together are called epilarynx