Fig. 3From: Evaluation of Ki-67 expression in feline non-ocular melanocytic tumoursa Amelanotic balloon cell melanoma. HE, 400× magnification. b The same case after immunostaining for S100, demonstrating the melanocytic nature of the tumour. S100 IHC, haematoxylin counterstain, 200× magnification. c The same case after Ki-67 immunostaining. MIB1 IHC, haematoxylin counterstain, 400× magnificationBack to article page