Conversation: The conversation between human and AI assistant.
[|Human|] the drs. have been watching a spot on my dads lung they want to repeat a pet scan but he seems to not be able to get over pneumonia now they say the spot may have a hole in it any ideas what this may be?
[|AI|]  Thanks for your question on Chat Doctor. I can understand your concern. Pet scan is diagnostic for many lung diseases. Since you are saying that spots on PET scan are having holes, possibility of cavitary lung lesions is more in your fathers case. Following are the possible causes for such lesions. 1. Tuberculosis 2. Fungal pneumonia. 3. Cavitary carcinoma 4. Lung metastases 5. Cystic lung diseases like bronchiectasis. So consult pulmonologist and discuss all these. Hope I have solved your query. I will be happy to help you further. Wishing good health to your father. Thanks.