Table 2. Expression of canine Nectin-4 in clinical tissue samples.

Case no.	Pathological diagnosis	Malignant or benign	Expression of Nectin-4
1	Invasive AC	Malignant	+
2	Simple tubular AC	Malignant	+
3	Simple AC	Malignant	+
4	Complex AC	Malignant	−
5	Anaplastic carcinoma	Malignant	−
6	Complex AC	Malignant	−
7	Complex adenoma	Benign	+
8	Complex adenoma	Benign	+
9	Multiple complex adenoma	Benign	+
10	Complex adenoma	Benign	−
11	Complex adenoma	Benign	−
12	Complex adenoma	Benign	−
13	Adenoma	Benign	−
14	Adenoma	Benign	−
15	Complex adenoma	Benign	−
16	ND	ND	+

AC, adenocarcinoma; ND, no data.