Making sense of PET scan report
I'm hoping to get some help understanding the report from my PET scan I had last week. Unfortunately, I don'ts see my pulmonologist until a week from today and I would rather not spend the next 7 days with my mind wandering through every answer Dr. Google provides. I am a firm believer that worry only robs me of my joy today. But in this moment I'm struggling a little.
About 15 years ago we found a tumor on the right lobe of my lung. They had a hard time getting a biopsy because of where it was located. The ended up attempting a needle biopsy, but told me they couldn't actually get a biopsy because it kept "escaping" – They decided it was probably a hamartoma tumor because of the inability to puncture it. I was told to quit smoking (25+ year smoker) and we would keep an eye on it. I did quit that day.
Over the years the tumor would be seen on x-rays when I would have pneumonia or bronchitis. But I did not have any medical provider following it consistently.
Flash forward to 3 months ago, I had a nagging cough and a bit of trouble with breathing. Doctor tells me I have bronchitis and "by the way you have a spot on your lung that looks suspicious". CT scan ordered and a referral to the pulmonologist. Pulmonologist said the tumor looks concerning and that it had grown a bit since it was originally found. He says he does not think its a hamartoma and if I hadn't been a former smoker for 25+ years, he would probably wait and see a bit longer, but he wants me to get another CT in 3 months. About a week later, a friend reminds of the time I had my appendix removed and there was a small carcinoid tumor on the tip. I recall learning that carcinoid tumors are also frequently found in the lung. I provided that information to the pulmonologist and he sent me for a PET scan right away.
That was Friday. Today I got the report. This is what was at the conclusion of the report.
1.7x 2.0 cm nodule which demonstrates moderate hypermetabolism with a peak SUV 2.6.
Moderate hypermetabolism is noted in the subcentimeter jugulodiagastric lymph nodes. Peak SUV measures 3.1 on the right and 3.2 on the left. No FDG avid lymphadenopathy is noted in the chest, abdomen or pelvis.
There are other details about Peak SUV measures for mediastinal blood pool (3.9) and Liver SUV (4.3). I have no idea what any of that means.
I would appreciate any insight anyone here might have. I understand that no one here can tell me a diagnosis, but I am hoping to learn more about what these details mean.