Hi thanks for posting in HCM I have understood your concern 1.addisons disease is adrenal cortex disease with low levels of steroids and needs steroid supplement. it is not concerned to the chest x ray patches. 2.chest x ray showing patches mostly because of metastasis of prostate cancer. I can suggest you to get done 1.LFT to check for liver involvement 2.serum creatinine 3. serum electrolytes 4.CT scan of abdomen to look for metastasis 5.PET CT is better one to check for metastasis. depending upon the stage of the cancer he. can be subjected to surgery in initial stage , chemo and radiotherapy in advanced stages. hope this helps you any further questions please let me know thanks