TABLE 1

Patients with Interval SNs

Patient no.	Sex	Age (y)	Melanoma	Breslow	Clark	Location	Interval SN	Other SN 1	Other SN 2	Survival^*
1	M	62	ALM	3.8	IV	R third finger	1/1 cubital	0/1 axillary		13 DOD
2	M	52	U, Na	5.5	V	R hypothenar eminence	0/1 humeral	1/1 axillary		43 ITM, DOD
3	F	56	SSM	0.5^†	III	L paravertebral	0/2 scapular	0/3 axillary		69 NED
4	M	35	SSM	3.0	IV	R paravertebral	0/1 dorsal	1/1 axillary		21 AXM, DOD
5	F	63	N^‡	3.0	IV	L scapular	0/1 scapular	0/1 cervical		66 NED
6	M	43	U^‡	3.9	IV	R calf	0/1 popliteal	0/1 femoral	0/2 inguinal	57 NED
7	M	57	SSM, Na	0.8	IV	R scapular	0/2 scapular	0/5 axillary		57 NED
8	F	26	S	1.3	III	L wrist	0/1 humeral	0/1 axillary		52 NED
9	M	67	N^‡	1.1	III	R dorsal	0/1 scapular	0/3 axillary		48 NED
10	F	34	N	0.9	IV	L forearm	0/1 cubital	0/1 axillary		48 NED
11	F	36	SSM	0.5^†	III	Middle dorsal	0/2 scapular R	0/1 axillary R	0/2 axillary L	43 NED
12	M	44	N	1.5	IV	L dorsal	0/1 dorsal L	0/3 axillary		36 NED
13	M	73	SSM^‡	1.2	III	R dorsal	0/1 scapular^§	0/1 axillary		34 NED
14	M	67	SSM	1.1	IV	L lumbar	0/2 lumbar	0/1 inguinal	0/3 axillary	15 NED
15	M	0	SSM	0.95	III	L shoulder	0/0 scapular^‖	—^¶		9 NED
16	F	45	SSM, Na	1.7	IV	L lumbar	0/1 intercostal	0/4 inguinal		8 NED
17	F	73	SSM	2.4	IV	L Achilles' tendon	2/4 popliteal	2/4 inguinal		1 NED
18	F	75	N	4.1	IV	L forearm	0/1 cephalic vein	0/3 distal cephalic vein (ISN)^¶		1 NED

↵* Follow-up in months: DOD = died of disease; ITM = in-transit metastases; NED = no evidence of disease; AXM = axillary metastases.
↵† With regression.
↵‡ With ulceration.
↵§ Only nonblue SN.
↵‖ Lymphatic channel was identified only in hot dissected tissues, without any other lymph drainage area.
↵¶ No classic SN.
ALM = acral-lentiginous; U = unclassified; N = nodular; SSM = superficial spreading melanoma; Na = on a nevi; S = spitzoid.
Data for Interval SN, Other SN 1, and Other SN 2 are number of metastatic SNs/number of detected SNs and location of these nodes.