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Figure 2: Staining characteristics of laminin in invasive urothelial carcinoma. (a and b) Absence of laminin staining in an area of invasive urothelial carcinoma (immunoperoxidase stain for laminin, ×40, ×200); (c) while laminin highlights the detrusor muscle, no staining is seen around the nests of malignant cells of an invasive urothelial carcinoma with micropapillary features (immunoperoxidase stain for laminin, ×100); (d) laminin highlights several blood vessels in an invasive urothelial carcinoma, but there is no staining around the aggregates of invasive urothelial cells (immunoperoxidase stain for laminin, ×40)

Figure 2: Staining characteristics of laminin in invasive urothelial carcinoma. (a and b) Absence of laminin staining in an area of invasive urothelial carcinoma (immunoperoxidase stain for laminin, ×40, ×200); (c) while laminin highlights the detrusor muscle, no staining is seen around the nests of malignant cells of an invasive urothelial carcinoma with micropapillary features (immunoperoxidase stain for laminin, ×100); (d) laminin highlights several blood vessels in an invasive urothelial carcinoma, but there is no staining around the aggregates of invasive urothelial cells (immunoperoxidase stain for laminin, ×40)