From: Evaluation of expression and function of vascular endothelial growth factor receptor 2, platelet derived growth factor receptors-alpha and -beta, KIT, and RET in canine apocrine gland anal sac adenocarcinoma and thyroid carcinoma
RTK
Negative
+
++
+++
Predominant localization
VEGFR2
13 (87)
1 (7)
0
C
PDGFRα
15 (100)
PDGFRβ
11 (73)
2 (13)
Kit
6 (40)
4 (270
4 (27)