Will Benign Turn into Cancer?

Specific types of benign tumors can turn into malignant tumors. These are monitored closely and may require surgical removal. For example, colon polyps (another name for an abnormal mass of cells) can become malignant and are therefore usually surgically removed.

How likely is it for a benign tumor to become malignant?

Less than 1 out of 10 become malignant. If necessary, they can be removed with surgery.

Can a benign cyst become cancerous?

A benign tumor is not cancer, and usually does not spread to other parts of the body. However, some benign tumors can become malignant, and others, while remaining benign, can grow to a size that encroaches on important structures in the body and causes serious symptoms.