41.   Li said the data could lead scientists to look for drugs that do not increase the risk that a recurring tumor would be ER-negative.

42.   Last week, a biopsy showed the tumor was benign.

43.   Medical observers say cancer patients are given the treatments they need, like chemotherapy or radiation, but are told that their tumors are benign.

44.   Not only was the tumor malignant, but it had spread to three spots on the liver as well.

45.   Now that the tumor is gone, chemotherapy will be needed, Doby said gratefully.

46.   Often, the tumors are so small and inconsequential that women are unaware of them.

47.   One reason is that tumors are genetically unstable and quickly develop resistance to many agents that attack them.

48.   Pancreatic tumors are among the grimmest of all cancers, killing many victims within a year of diagnosis.

49.   Patients whose tumors were too big for the laser to help until now had nowhere to turn.

50.   Seed therapy works best on patients who have detected their cancer at an early stage and whose tumors are relatively small.