Computed tomography in the diagnosis of childhood renal lymphangiectasia

A 14-year-old male patient presented with a history of intermittent bilateral flank pain for 2-3 months. There was no history of any urinary complaints or trauma. Renal function test was normal. Computed tomography (CT) scan of the abdomen revealed bilateral perinephric and peripelvic fluid collections, which were almost symmetrical. A provisional diagnosis of bilateral renal lymphangiectasia was suggested which was confirmed by laboratory analysis of aspirated perinephric fluid. Renal lymphangiectasia is a very rare benign disorder of renal lymphatics. CT can noninvasively diagnose this condition resulting in early treatment and reduced morbidity.