Journal of Cancer Research and Therapeutics Close
 

Figure 4: Oral squamous cell carcinoma. (a) demarcated invading tumor front, (b) diffuse metastasis of tumor cells. Immunoperoxidase stain for type IV collagen, hematoxylin counterstain, (a) ×25; (b) ×40. The invading front of carcinoma was well demarcated from the adjacent stroma by linear deposition of type IV collagen in early grades of carcinoma (a), and higher grades of carcinomas showed granular deposition of immunoreactive type IV collagen (b)

Figure 4: Oral squamous cell carcinoma. (a) demarcated invading tumor front, (b) diffuse metastasis of tumor cells. Immunoperoxidase stain for type IV collagen, hematoxylin counterstain, (a) ×25; (b) ×40. The invading front of carcinoma was well demarcated from the adjacent stroma by linear deposition of type IV collagen in early grades of carcinoma (a), and higher grades of carcinomas showed granular deposition of immunoreactive type IV collagen (b)