Publisher Summary Angiogenesis occurs during embryonic development and during
several physiological and pathological conditions in adult life. Solid tumors induce
angiogenesis. However, tumor angiogenesis differs at least in a temporal way from the other
types of angiogenesis. In certain nonmalignant processes, angiogenesis is abnormally
prolonged, although still self-limited, as in pyogenic granuloma or keloid formation. By
contrast, tumor angiogenesis is not self-limited. Once tumor-induced angiogenesis begins, it …