What does shadow on kidney signify?
Patient: My husband found out he has a large kidney stone. They did a cat scan in the ER yesterday. Today the doctor called and said he has a shadow on the kidney. What could this be? He is scheduled for an ultra sound. Is this cancer or could it mean something else. Doctor: Dear User, may be he would simply indicate the shadow that is observed after a stone is under an ultrasound beam (which is diagnostic for stone). Otherwise, please post the US report. Take care,