[Evaluation of the penile artery by ECO-Duplex in the diagnosis of erectile dysfunction]. / Evaluación arterial peneana mediante ECO-Duplex en el diagnóstico de la disfunción erectil.

An Eco-Duplex study of the penile arterial system in 19 patients which consulted their physician for impotence is presented and a two-group classification is made: Group 1, arterial cause (7 patients) and, Group 2, non-arterial cause (12 patients). Diameter and blood flow of the cavernous artery pre-and post intracavernous injection of papaverine was evaluated. A significant difference was found in the increase of arterial diameter in both groups as well as in the quantification of arterial flow pre- and post-application of papaverine, these being larger than 32 cm/sec in all non-arterial impotent patients (group 2).

[Renal carcinoma presenting as a multilocular cyst]. / Carcinoma renal presentado como quiste multilocular.

Although it is not uncommon to find small foci of cystic degeneration in renal adenocarcinoma, it is uncommon to find these so extensive as to permit a preoperative diagnosis of multilocular cyst as in the present case. Several etiopathogenic mechanisms have been described. In the present case, the underlying mechanisms are likely to be tumor necrosis and intrinsic multilocular cystic growth. Arteriography is not the best diagnostic method and there are doubts as to the usefulness of punction aspiration. Prognosis remains unclear.