| Summary: | Renal lymphangiectasia is a rare and benign renal lymphatics disorder. It is usually asymptomatic, and rarely revealed by lumbar pain, arterial hypertension or retroperitoneal fluid collection. Radiological diagnostic is challenging and can be done if radiologists are aware of the imaging findings. Here in, we report a case of a young woman admitted for the management of a blunt abdominal trauma. Computed tomography showed a huge right retroperitoneal fluid collection, communicating with a perirenal cyst. This perirenal collection was bilateral and symmetrical. The diagnostic of a ruptured perirenal lymphangiectasia was suspected and confirmed by needle puncture. We managed the case using percutaneous drainage. Reassessment at subsequent follow-up visits showed a total regression of the collection improvement in the patient's clinical.
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