Differential Expression of Claudin 1 and 4 in Basal Cell Carcinoma of the Skin

Table 3

Frequencies of claudin IHC scores in 36 basal cell carcinomas.

IHC scores	0	1+	2+	3+
Claudin 1	0 (0%)	2 (5.5%)	11 (30.5%)	23 (64%)
Claudin 4	22 (61%)	13 (36%)	1 (3%)^†	0 (0%)^†

(score 0 and 1+ versus score 2+ and 3+ of claudin 1). ^† (score 0 and 1+ versus score 2+ and 3+ of claudin 4).