Figure 1From: Specific tumor-stroma interactions of EBV-positive Burkitt's lymphoma cells in the chick chorioallantoic membraneBL2 cells stained with cell-tracker (green) and incubated on the CAM for 4 days. A) The cells form a solid tumor with almost sharp borders. CAM vessels are faintly visible. Bar = 2 mm. B) Higher magnification of A) showing a few green tumor cells at some distance from the solid tumor. Bar = 150 μm.Back to article page