laryngeal endoscopic cordectomies

A classification of laryngeal endoscopic cordectomies was first proposed by European laryngology
society in 2000.The classification described 8 types of cordectomies, as follows:

Type I: Subepithelial cordectomy, which is the resection of vocal cord epithelium passing through the
superficial layer of lamina propria .
Type II: Subligamental cordectomy, which is resection of epithelium, or Reinke’s space and vocal ligament.
Type III: Transmuscular cordectomy, which proceeds through vocalis muscle.
Type IV: Total cordectomy, which extends from vocal process to the anterior commissure.
Type Va: Extended cordectomy encompassing the contralateral vocal fold.
Type Vb: Extended cordectomy encompassing the arytenoids.
Type Vc: Extended cordectomy encompassing the ventricular fold.
Type Vd: Extended cordectomy encompassing the subglottis.