Films obtained following perinephric abscess drainage. Large staghorn calculus with several noncontiguous large calculi filling dilated renal calyces in the left kidney. The left renal shadow is enlarged. Pigtail drainage catheter projects over the left inferior pole, compatible with abscess drainage catheter. No right-sided renal tract or ureteric calculi. Hyperdense faecal material in the left-sided colon and rectum compatible with mixed enteric contrast.