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Cancer Warrior
Cancer Caught on Video
4. Small Tumor
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This shows a very small metastatic cancer, early in its development. This is a melanoma tumor, so it appears black. It is growing around a blood vessel, and you can see its three-dimensional shape as the microscope focuses up and down through it. This small tumor still does not need to attract new blood vessels to support its growth, because the blood vessel that it surrounds can support its growth at this size.

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