Conversation: The conversation between human and AI assistant.
[|Human|] my friend has prostrate cancer, which is too far advanced to have suergery, along with this they found cancer in his kidney, he has an enlarged spleen, he was suffering with low RBC and high Iron , would this suggest the cancer has spread to blood stream, or lymphatic system? thank you
[|AI|]  Thanks for your question on Chat Doctor. Prostate cancer can spread to the bone and bone marrow. They produce osteoblastic secondaries and alter bone marrow function. So his altered hematology can be due to bone marrow involvement. But this will not make any difference in treatment as he is already having stage 4 malignancy. Yes, it can have the worst impact on prognosis. Bone marrow involvement in stage 4 prostate cancer patient reduce life expectancy Chat Doctor.  Probably less than 4-5 months.