Cancer that does not form a tumor.
Correct answer: B. leukemia
- A. metastatic breast cancer
- B. leukemia
- C. lung cancer
- D. bladder cancer
Explanation
Leukemia is a cancer of blood-forming tissues in which abnormal cells circulate through the blood and bone marrow rather than forming one solid tumor. Breast, lung, and bladder cancers usually begin as tumors in organs.
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