malignant tumor
malignant neoplasm
metastatic tumor

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

But the result, as has been known to surgeons for a century, is that a primary tumor often keeps lesser, metastatic tumors in check.

When the primary tumor is removed, the metastatic tumors flourish.

Those are called metastatic tumors, and their treatment and prognosis depend on the type of cancer it is.

When the study was complete David was shocked that there was no sign of a metastatic tumor.

This new tumor is known as a metastatic (or secondary) tumor.

The disease may spread (metastasize) from the primary tumor and form metastatic tumors in other parts of the body.

The incidence of metastatic tumors are more prevalent than primary tumors by 4:1.

He died of respiratory arrest related to his metastatic tumor on October 5, 2011.

She is found dead of a hemorrhage caused by a metastatic tumor in her uterus.