Renal pseudotumors caused by retained pararenal surgical sponges.
D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D006801:Humans; D007668:Kidney; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D013997:Time Factors; D014567:Urography