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A case of venous extension de renal angiomyolipoma is reported. The diagnosis was established preoperatively by ultrasonography and renal CT. This tumour was treated conservatively by partial nephrectomy after selective embolization because of the presence of complete duplication.

The authors report the observation of arterial hypertension occurring six years after renal trauma, secondary to the upper polar infarction of the left kidney accompanied by a hypersecretion of bilateral renin and whose cure was obtained by partial nephrectomy. According to a literature review, it seems that post-reno-contusive arterial hypertension is not rare and can be due to various lesions whose common denominator is renal ischaemia. At present, no clinical or paraclinical element enables the prediction with certainty of the reversibility of the hypertension after the surgical intervention. However, the earlier the intervention, the better the chances of recovery, thus showing the importance of the systematic screening of renal lesions after lumbo-abdominal trauma.

The analysis of a series of 248 cases led to the following conclusions: intravenous pyelography, together with nephrotomography and ultrasonography represent, the pillars of emergency assessment; computed tomography, performed systematically since 1985, is the most appropriate examination for the precise assessment of the lesions in a functioning kidney; arteriography is still essential in cases of urographically silent kidneys. The choice of therapeutic approach essentially depends on the type of the lesion: severe parenchymal lesions (type III) (58 cases) and certain cases of type II trauma (25 cases) underwent a deferred emergency operation which was as conservative as possible; pedicle lesions (type IV) and serious haemorrhagic lesions required emergency surgery (11 cases); type I or type II lesions with moderate hematomas were usually treated by simple observation (145 cases); cases of trauma seen at the stage of sequelae (8 cases) sometimes required a surgical solution (arteriovenous fistula, segmental ischaemia of the parenchyma with hypertension, encysted urinoma).