Medullary sponge kidney.
D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D007691:Medullary Sponge Kidney / Q000209:etiology* / Q000473:pathology*; D008875:Middle Aged; D009397:Nephrocalcinosis / Q000150:complications*; D011859:Radiography; D014567:Urography