[Arterial and renal parenchymal histological data in the areas on polar and truncal arteries in arterial hypertension of adult patients].

The Cardiac Clinic reports its experience of 16 cases having unilateral curative renal surgery for hypertension in the adult, and has found a particularly high incidence (8 per cent of all cases). A study has been made of the lesions in the malformed and dysplastic renal arteries on the one hand, and of the correspondingly ischaemic and atrophic renal parenchyma on the other. Attention is drawn to the cases of unilateral renal atrophy (50 per cent of cases), the commonest involving gross lymphoplasia of congenital arterial origin. The other cases are of stenotic dysplasias, and special points to notice are the spread of the dysplasia towards the parenchyma, the presence of multiple aneurysms which militate towards nephrectomy, and the relative frequency of dysplasia of the intima (2 cases out of 8).