[Renal lymphangioma].

The authors report the case of a 39-year-old man presenting with renal colic attributed to a renal tumour diagnosed on CT scan. Treatment consisted of total nephrectomy in the absence of a definitive intraoperative histological diagnosis of renal lymphangioma. Renal lymphangioma is a rare benign tumour, probably derived from a congenital malformation of the lymphatic system. Medical imaging has certain limits for the diagnosis which can be confirmed by renal needle biopsy. Treatment must always be as conservative as possible. The clinical course is always favourable.