Fig. 1From: Plectin as a prognostic marker in non-metastatic oral squamous cell carcinomaImmunohistochemical staining for plectin of normal tongue mucosa (a) and oral squamous cell carcinoma (b). The normal mucosa showed only faint staining while the blood vessels in the stroma were strongly stained. The staining of plectin positive tumor cells was strong, and the stroma showed almost no stainingBack to article page