Fig. 4

Axial non-contrast computed tomography imaging of a 45-year-old male patient with a perinephric haematoma after percutaneous nephrolithotomy showing a large perinephric haematoma related to the left renal upper pole associated with parenchymal laceration (A). Selective left renal angiography using a cobra head catheter revealed normal intrarenal arteries with no vascular lesions (B)