<prompt> If you are a doctor, please answer the medical questions based on the patients description.My son has enlarged lymph nodes on his heart and a 2centimeter lump on his lung. He will have a pet scan soon and then surgery to biopsy. He never smoked. He has been type 1 diabetic since 12. He has severe o c d and has fought so hard to control it. Now this! He is so good, it just isnt fair. I can tell you how many people he has helped in his short 51 yrs. nor the loved ones he has lost to unspeakable deseases. I am so helpless to help him. I wish I could give him some information about this condition that would help. If it werent for the lump, I could hope it is only an infection. I dont know what to say to him. I wish I could be there but my husband is recovering stage 4 prostate cancer and I cant leave him alone. I can only pray. Please give us some hope Thank you and god bless you.  <response>: Im really sorry for the things currently happening to your family. A lung mass doesnt always mean cancer of the lung. There are some infections, other cancers, and some other conditions. Of course youre mostly concerned about the lymph nodes. I can never guarantee, but there are hopes that it might be a parasiticalfungal infection which can show up as lung masses. Or it can be lymphoma also a cancer with relatively better prognosis showing up in the lungs. I pray for your family to heal and hope that there isnt anything serious. 