High-Magnification Microscopy Visualizes Tumor Blood Vessels in Real Time

Researchers have adapted a high-magnification technique for viewing body structures at the cellular level so that they can visualize blood vessels in human tumors in real time.

Using the technique, called intravital microscopy (IVM), they found that approximately half of blood vessels in tumors in patients with melanoma had no blood flow and that tumor blood vessels were much larger than would have been anticipated from prior studies.

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