Tumor site and subsite, stage, and evidence of dermal lymphatic invasion

Case #	Tumor Site	Tumor Subsite	T Stage	N Stage	M Stage	Overall Stage	Dermal Lymphatic Invasion
1	NC/PS	Lateral nasal wall	T4	N2C	M0	4	No
2	NC/PS	Maxillary sinus	T4	N0	M0	4	No
3	NC/PS	Maxillary sinus	T4	N0	M0	4	No
4	NC/PS	Ethmoid sinus	T4	N0	M0	4	No
5	CUT	Cheek and temple	T4	N0	M0	3	No
6	CUT	Auricle	T4	N1	M0	3	No
7	CUT	Forehead	T4	N0	M0	3	No
8	CUT	Preauricular region	T4	N1	M0	3	Yes
9	OC	Floor of mouth	T4	N2A	M0	4	No
10	OC	Alveolar ridge	T4	N0	M0	3	No
11	OC	Alveolar ridge	T4	N0	M0	4	No
12	OC	Lower lip	T4	N2C	M0	4	No

Note:—N indicates nasal cavity; PS, paranasal sinus; CUT, cutaneous; OC, oral cavity.