My brother recently had a CAT scan of his liver, pancreas, lungs and prostrate at a respected local Providence, RI, hospital. Some of the results, I was told, indicated lesions on his pancreas & liver, with his lungs flat on bottom/each lobe; his prostrate numbers were slightly elevated. Also informed by his doctor that his liver looked irritated . He has since been scheduled for a liver biopsy 6/18 and PET scan 6/20. Can CAT scans show inaccurate results?