Hello LindaJayne. You must be very worried about your Dad. I was diagnosed with lung cancer in February 2017. I had a PET scan about a month later. The PET scan shows whether you have any other areas of "activity" anywhere else. In my case there was what was described as "avid uptake" at the junction of my small and large intestine as well as in my right lung. I had surgery to remove the top lobe of my right lung last April (a year ago) and have had four colonoscopies to find out what was going on in my colon. Turns out it was a large adenoma, not malignant but needed to be removed. That was finally done in November and a follow-up in January showed all was well. Activity in my lower spine also showed up on the PET scan, but that turned out to be arthritis. So it's been quite a journey. The PET scan will not show what grade our dad's cancer is - I think they will need to do a biopsy for that. I had a bronchoscopy and would certainly refuse another one - it was the most dreadful experience. But I subsequently had a CT guided biopsy, and that was fine - it also showed the size and area of my cancer and what kind it was - non-small-cell carcinoma. I hope this info helps. Good wishes to you and your Dad.

Hello LindaJayne. You must be very worried about your Dad. I was diagnosed with lung cancer in February 2017. I had a PET scan about a month later. The PET scan shows whether you have any other areas of "activity" anywhere else. In my case there was what was described as "avid uptake" at the junction of my small and large intestine as well as in my right lung. I had surgery to remove the top lobe of my right lung last April (a year ago) and have had four colonoscopies to find out what was going on in my colon. Turns out it was a large adenoma, not malignant but needed to be removed. That was finally done in November and a follow-up in January showed all was well. Activity in my lower spine also showed up on the PET scan, but that turned out to be arthritis. So it's been quite a journey. The PET scan will not show what grade our dad's cancer is - I think they will need to do a biopsy for that. I had a bronchoscopy and would certainly refuse another one - it was the most dreadful experience. But I subsequently had a CT guided biopsy, and that was fine - it also showed the size and area of my cancer and what kind it was - non-small-cell carcinoma. I hope this info helps. Good wishes to you and your Dad.