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Across 2. Replication of cells 4. Evaluating the degree of maturity of tumor cells 8. Having the ability to enter and destroy surrounding tissue 10. Containing dead tissue 13. Spread of a malignant tumor to a secondary site 14. Cancerous tumor made up of cells of epithelial origin 15. Agents that cause cancer; chemicals, drugs, radiation, and viruses 17. Detailed plan for treatment of an illness 18. Return of symptoms of disease 19. Treatment with drugs

Down 1. Noncancerous tumor 2. Change in the genetic material (DNA) of a cell 3. Relieving but not curing symptoms 5. New growth; benign or malignant tumors 6. Invasive tumor 7. Partial or complete disappearance of symptoms of disease 9. Cancerous tumor derived from connective or flesh tissue 11. Treatment of tumors using radiation 12. Chemical substances that inhibit the growth of cells 16. Disease caused by abnormal and excessive growth of cells in the body