Table I.

Descriptions and β-gal staining patterns of nevi examined.

#	Age	Sex	Site	Diagnosis	β-gal pH 4	β-gal pH 5	β-gal pH 6
1	48	F	chest	CMN, congenital and dysplastic features	1+	nd	neg
2	48	M	arm	IDN, congenital features	2+	1+	neg
3	29	M	back	CMN, congenital and dysplastic features	1+	1+	neg
4	27	F	back	Dysplastic nevus, mild atypia	1+	neg	neg
5	48	F	groin	CMN	3+	1+	neg
6	36	M	back lower	CMN, congenital and dysplastic features	2+	neg	neg
7	61	F	leg	IDN, congenital features	3+	2+	neg
8	23	M	back	CMN, congenital and dysplastic features	2+	1+	neg
9	33	F	back	CMN, congenital features	3+	2+	neg
10	23	F	groin	CMN	1+	neg	neg
11	44	F	hand	CMN, congenital features	3+	3+	neg
12	73	F	chin	IDN	1+	1+	neg
13	28	M	back upper	CMN, congenital features	2+	2+	neg
14	34	F	arm	Blue nevus	focal/1+	neg	neg
15	30	F	shoulder	Dysplastic nevus, moderate atypia	1+	neg	neg
16	56	F	back	IDN	1+	1+	neg
17	57	M	back	IDN	2+	2+	neg

CMN, compound melanocytic nevus; IDN, intradermal melanocytic nevus.

Scoring: neg, negative staining; 1+, <25% cells positive; 2+, 25–75% cells positive; 3+, 75–100% cells positive; nd, not done.