RM-HNSCC — beauhilton

Oral Cavity - TN(M) Staging

T	N
T1 - <=2cm, DOI <=5mm	N1 - single ipsilateral, <=3cm, ENE-
T2 - <=2cm, DOI >5mm; >2cm <=4cm, DOI <=10mm	N2a - single ipsilateral and [<=3cm, ENE+] or [>3cm <6cm, ENE-]
T3 - >2cm <=4cm, DOI >10mm; >4cm, DOI <=10mm	N2b - multiple ipsilateral, <=6cm, ENE-
T4a - >4cm, DOI >10mm; invades adjacent structures only	N2c - bilateral/contralateral, <=6cm, ENE-
T4b - invades masticator space, pterygoid plates, skull base, encases internal carotid	N3a - >6cm, ENE-
	N3b - single ipsilateral >3cm, ENE+; multiple ipsi/contra/bilateral any ENE+; or single contralateral ENE+

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