Renal lymphangiectasia is a very rare benign disorder characterised by dilatation of the perirenal and peripelvic lymphatics. The condition is commonly misdiagnosed for othercystic lesions of the kidney such as polycystic kidneys. The diagnosis can be made with near-certainty if classical imaging findings are recognised. We report a case of bilateral renal lymphangiectasia, diagnosed on ultrasonography and computed tomography based on the typical imaging findings and the laboratory analysis of aspirated fluid. The patient was managed conservatively.
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