Table 2.

Clinical and histopathologic characteristics of the three T1 patients with positive SLN.

Age	Gender	Location	Histologic type	CL	BT (mm)	MR	Positive SLN	Total no. SLN	No. of tumor cells in SLN	No. of positive LN/CLND
34	M	Postauricular	Superficial spreading	IV	0.81	3	2	4	<10	0/45
53	M	Midabdomen	Superficial spreading	IV	0.81	1	1	1	<10	0/15
68	M	Arm	Nodular	IV	0.54	2	1	1	<10	0/22

CL: Clark level; BT: Breslow thickness; MR: mitotic rate; TIL: tumor infiltrating lymphocytes; Reg: regression; LVI: lymphovascular invasion; PNI: perineural invasion; Sat: satellitosis; SLN: sentinel lymph node; no.: number; LN: lymph node; CLND: completion lymph node dissection; NB: nonbrisk; NI: not identified.