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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.

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