On Monday I had a follow-up CT scan to see whether the cancer medication is working. Yesterday we drove to Pittsburgh to meet with Dr. Villaruz and find out the results. She confirmed that the lower lobes of my lungs are beginning to clear up! We saw this ourselves on the CT scan. (Because my cancer grows in the lining of the alveolar structures of the lungs, there is no tumor to remove or monitor. This is why my previous CT scans looked very cloudy.) This means that Tagrisso is doing its thing and blocking cells with the EGFR (epidermal growth factor receptor) mutation from copying themselves. There is some fibrosis (thickened, stiff tissue) that may be scarring; only time will tell if the damage is permanent. We were relieved and elated to hear the overall great news. Leland predicted we would get good news because I've been using less oxygen and walking faster on the same amount of oxygen, I don't cough anymore, and none of my symptoms have worsened. So I will just keep ta...