[Polyarteritis nodosa: evolution of the angiographic findings and uncommon localizations (author's transl)].

A series of 10 patients with polyarteritis nodosa have been studied by means of angiographic investigations with selective arteriography of the different visceral districts. The attention is focused on some unusual localizations of the typical lesions such as aneurysms of the supra-renal artery of the coronary artery and of the femoral artery. Up to now these localizations have been described only in post mortem examinations. Such localizations should be considered as a demonstration of the multicentric spread of the disease, independently from its degree of development. On the other hand a correlation seems to exist between the evolution of the disease in the increase in size of the aneurysmatic lesions as well as with the simultaneous presence of all the angiographic signs.