Neoplasia and Cancer Biology · USMLE Step 1

Which hallmark of cancer reflects a tumor’s ability to stimulate formation of blood vessels to support its growth?

  1. Evading growth suppressors
  2. Inducing angiogenesis
  3. Resisting cell death
  4. Immune evasion
Show answer and explanation

Correct answer: Inducing angiogenesis

Inducing angiogenesis is a key hallmark of cancer: tumors secrete pro-angiogenic factors to promote new blood vessel formation, ensuring oxygen and nutrient supply for continued growth.

Difficulty: Medium Question 5 of 20

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