Conversation: The conversation between human and AI assistant.
[|Human|] I am a five year cancer surviver of MHF sarcoma.  I have had six CAT scans in five years.   The tumor removed from the top of my left leg was very small.  After the tumor was removed I then had a clean cut surgery done.  I had radiation on my leg and then three chemo treaments.  For the past two years I have had a PET scan done.  This year my doctor schedule a chest CT, an abdomen CT and a pelvis CT along with a lower extremity MRI.  He believes we can get the needed info.  And if needed a pet can be ordered.  (The reason for the change is insurance changed the guidelines.)I am so concerned about the radiation.  What do you think?  Thank you.
[|AI|]  Hi, dairy have gone through your question. I can understand your concern. You had malignant fibrous histiocytosis. It is a soft tissue sarcoma.  It was removed completely with free surgical margin followed by chemotherapy.  So don't worry about that. CT scan always expose to high risk of radiation.  It gives large amount of radiation, and it is not good for health.  So no need of repeated ct scan.  If needed go for MRI. It is safe and don't expose to radiation risk. Consult your doctor and plan accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health.