Tumor Angiogenesis refers to the proliferation of blood vessels within a tumor, a process that is crucial for the growth and survival of cancer cells. This phenomenon is a key aspect of the tumor microenvironment and is often targeted by anti-cancer therapies.Tumor Angiogenesis refers to the proliferation of blood vessels within a tumor, a process that is crucial for the growth and survival of cancer cells. This phenomenon is a key aspect of the tumor microenvironment and is often targeted by anti-cancer therapies.