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Breast - Invasive breast cancer of no special type (NST). Tumor cell groups and fat cells are surrounded by a delicate collagen IV positive membrane. Small vessels do also stain. |
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Colon - Collagen IV negative colorectal adenocarcinoma. Cancer glands and stroma cells are surrounded by collagen IV positive structures. |
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Esophagus - Adenocarcinoma invading collagen IV positive smooth muscle. Blood vessels of variable size are also stained. |
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Esophagus - Collagen IV negative squamous cell carcinoma. Tumor cell groups are surrounded by a delicate collagen IV positive membrane. Vessels of all sizes do also stain positive. |
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