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3 votes
What are malignant tumors?

2 Answers

4 votes
A tumor that invades surrounding tissues, is usually capable of producing metastases, may recur after attempted removal, and is likely to cause death unless adequately treated.
User Andreas Stokholm
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1 vote
Malignant tumors are cancerous and are made up of cells that grow out of control.
User JoeDanger
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