Sponge kidney.
D000367:Age Factors; D006801:Humans; D007223:Infant; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D007691:Medullary Sponge Kidney / Q000175:diagnosis* / Q000473:pathology; D007690:Polycystic Kidney Diseases / Q000175:diagnosis