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The Chorion Allantois Membrane Assay. (A) Representative macroscopic image of the CAM vessels after implantation of squamous cell carcinoma cells. The tumors grow within silicone rings. (B) Intravital microscopy following iv FITC-dextran injection. The image depicts venules and arterioles surrounded by the dense capillary network. (C) HE staining of the CAM membrane showing well-vascularized connective tissue between the low epithelial layers.
