label: Glottic Cancer pT4a TNM Finding v7
label_lc: glottic cancer pt4a tnm finding v7
description: "Glottic cancer with moderately advanced local disease.  Tumor invades through the outer cortex of the thyroid cartilage and/or invades tissues beyond the larynx (e.g., trachea, soft tissues of neck including deep extrinsic muscle of the tongue, strap muscles, thyroid, or esophagus). (from AJCC 7th Ed.)"