Final answer:
The answer is 'False,' as prophylactic organ removal is a preventative measure taken before the occurrence of cancer, particularly in individuals with a high genetic risk of developing cancer within a particular organ. It differs from therapeutic interventions for removing already malignant organs.
Step-by-step explanation:
The direct answer to the question is: B. False.
Prophylactic organ removal refers to the surgical removal of an organ to prevent cancer or another serious disease, before any malignancy has occurred. It is often considered in individuals with a high genetic risk for certain types of cancers. The term prophylactic indicates that the surgery is preventive rather than reactive to an existing condition. The decision for such a removal often stems from genetic testing, which may reveal mutations that significantly raise the risk of developing cancer within a particular organ.
For example, individuals carrying BRCA1 or BRCA2 gene mutations may choose to have prophylactic mastectomies to prevent breast cancer. This approach contrasts with the removal of an organ already displaying malignancy, which is a therapeutic intervention against an established disease. Understanding that cancer is a disease involving abnormal cellular growth and genetic changes, the body's immune system does attempt to identify and destroy such cells. In some cases, though, these responses fail, leading to the development of tumors. A prophylactic surgery is a preemptive measure taken to prevent such an outcome.