Once in the bone, these cancer cells can form new metastatic tumors.

This means the new tumor may be somewhat different from the primary tumor.

Although there is a high recovery rate, the radiation treatment itself raises the risk of new tumors.

For example, breast cancer cells can metastasize to the lungs and cause the growth of a new tumor.

Patients participating in the study did not develop any new tumors.

All 10 of those that had been received salt water had huge new tumors.

She had already had three operations for cancer, and new tumors were growing in her large intestine.

The new tumors can often be treated easily if they are caught early.

It can also travel to other parts of the body and form new tumors, a process called metastasis.

Women like me, who have been treated for breast cancer, always carry an increased risk for a new primary tumor.