Conversation: The conversation between human and AI assistant.
[|Human|] hi I have sarcoidosis, and had my spleen removed due to the sarcoid..I was on prednisone for 2 months and it helped clear the lesions on my lungs and Liver, redid a pet scan it showed the lesion on my pubic symphasis has metabolic action increase fromb 6.9 to 8.5. what do you recomend I should do? do you think it is sarcoid or bone cancer
[|AI|]  Thanks for your question on Chat Doctor. In my opinion you should get done biopsy from the pubic symphysis region. Sarcoid is an inflammatory lesion. So on PET scan it will show positive (hot spot). And malignant spread will also give positive uptake on PET SCAN. So if PET scan shows positive result on pubic symphysis than it can be due to either sarcoma or malignant spread. So to rule out between these two biopsy is must. And only biopsy will confirm the diagnosis.  So better to get done biopsy from pubic symphysis lesion.