Fig. 3From: Metallothionein expression in feline injection site fibrosarcomasFeline injection site fibrosarcomas. A Tumour grade I. Numerous tumour cells (quantitative score: 3) show moderate (qualitative score: 2) expression of metallothionein (IRS: 6). The expression is mostly cytoplasmic, but the nuclear expression is also present in some tumour cells. B Tumour grade II. Moderately numerous tumour cells (quantitative score: 2) show weak (qualitative score: 1) cytoplasmic expression of metallothionein (IRS: 2). C Tumour grade III. Absence of metallothionein expression in tumour cells. Metallothionein immunostaining with DAB, counterstaining with Mayer’s haematoxylin, 200xBack to article page