Conversation: The conversation between human and AI assistant.
[|Human|] my brother is 47 yrs. old and was diagnosed with multiple myeloma 5 yrs ago. He has had 4 transfusions in the past 5 weeks.  He woke up 4 days ago with shortness of breath and was taken to the hospital.  He had another transfusion and found black spots on his lungs.  Could he now have lung cancer.  He has also lost 40 lbs in approx. 6 mos.  Is he at end stage?
[|AI|]  Thanks for your question on Chat Doctor. I can understand your concern. Multiple myeloma can spread to lungs and cause multiple lung metastases. These metastatic lesions look like black spots on lungs. So we should definitely rule out lung metastases in your brother s case. So get done PET scan first. If it shows increased uptake then he will need Biopsy to confirm the diagnosis of cancer. And lung metastases in multiple myeloma suggest poor prognosis. So if these spots are cancerous then he is having life expectancy of less than 1 year. Hope I have solved your query. I will be happy to help you further. Wishing good health to your brother. Thanks.