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Cystic lymphangiomas are comparatively rare, benign tumors of lymphatic system and their histogenesis are uncertain. About 75% of theses lesions are in the neck, 20% are in the axillary region, and 5% are in the mediastinum, retroperitoneal region or groin. But retroperitoneal cysticlymphangiomas are very rare. Retroperitoneal cystic lymphangiomas are usually found incidentally during diagnostic procedures performed for unrelated clinical... |