Actas urologicas españolas
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Primary retroperitoneal tumours may arise from different structures as neural, mesodermal, urogenital ridge, or embryonic remnant tissues. Lymphangioma is a rare benign tumour of the lymphatic tissue. They result from a developmental failure of the lymphatic system. ⋯ Preoperative diagnosis is facilitated by ultrasonography and computed tomography. In order to correctly diagnose of these neoplasms it is essential to carry on ultrasound and CT examination. Treatment of choice is always surgical and a complete extirpation should be performed, unless vital structures were are involved.