Fig. 5

Immunohistochemical analysis of MT1-MMP. Immunoexpression in oral mucosa (a, b). Cytoplasmic expression in cells of the tumour parenchyma and cell membrane (c, d). At a lower magnification, the predominant immunostaining of the cells of the periphery of the epithelial cords (C) was observed. Immunoperoxidase. Scale: 200 μm (a, c) and 20 μm (b, d)