91.   To determine whether a tumor is benign or malignant, pathologists examine the tissue removed in surgery under a microscope.

92.   Told the tumor was malignant, Azinger stole a quick peek at his children seated in the waiting room before returning his gaze to the doctor.

93.   Transplanted tumors can be easier to kill.

94.   When a surgeon finally examined her, he said the tumor was so large that it could not be operated on.

95.   While the tumor was benign when first detected, its chances of becoming cancerous would increase the longer it remained untouched.

96.   Why bother with a veterinarian if you can just ask the animal whether his tumor is benign or cancerous?

97.   With Stage I nonseminomas, tumors are less responsive to radiation, so the options are different.

98.   Yet with no way of knowing which tumors are potentially lethal, doctors usually treat everyone with methods like surgery or radiation that can cause impotence and incontinence.

99.   Also, lung cancer is so aggressive that, by the time it is spotted by an X-ray, the tumor is very difficult to treat.

100.   Colon tumors are essentially the only type of cancer for which doctors use laparoscopy.