SACRAMENTO, Calif. -- The scan, Dr. David Gandara said, looked really good. Romeo Topacio nodded. He has stage four lung cancer -- the deadliest of cancers -- and for a moment he sat quietly, taking in the doctor's words.
Gandara continued, saying the tumor was responding to the targeted treatment. He held a paper with more test results, showing that Topacio's cancer is likely to be responsive to another drug as well.