288-289 / 2351
T3
T2
T1
T4
STAGING
SUPRAGLOTTIS
Tumor limited to one subsite of the supraglottis with normal vocal cord mobility
Tumor invades mucosa of more than one adjacent subsite of the supraglottis or glottis region
outside the supraglottis (eg, mucosa of base of the tongue, vallecula, medial wall of the
piriform sinus) without fixation of the larynx
Tumor limited to the larynx with vocal cord fixation and/or invading any of the following:
postcricoid area, pre-epiglottic tissues, paraglottic space, and/or with minor thyroid cartilage
erosion
T4a:
tumor invades the thyroid cartilage and/or tissues beyond the larynx (eg, trachea, soft
tissues of the neck including deep extrinsic muscles of the tongue, strap muscles, thyroid
gland, or esophagus)
T4b:
tumor invades the prevertebral space, encases the carotid artery, or invades mediastinal
structures
mercoledì 29 giugno 16