label: Subglottic Cancer pT4a TNM Finding v6
label_lc: subglottic cancer pt4a tnm finding v6
description: "Subglottic cancer with tumor invading cricoid or thyroid cartilage and/or invading tissues behind the larynx (e.g. trachea, soft tissues of neck including deep extrinsic muscles of the tongue, strap muscles, thyroid, or esophagus). (from AJCC 6th Ed.)"