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The authors percutaneously placed 45 catheters for peritoneal dialysis in 32 patients, aged 31-83 years, in a radiology department. In all patients, the procedure was modified by use of the Hawkins needle, and in response to the high frequency of extrusion of the proximal cuff, the deep cuff of the 16th and each subsequent catheter was sutured to the rectus muscle or fascia. After 17 catheters were placed, the catheter was modified with a permanent bend, or "U" neck, between the two cuffs, which were then thickened. All procedures were performed with use of local anesthesia, and all catheters were successfully placed. Acute complications included bowel perforation associated with peritonitis in one patient (2%). Delayed complications included cuff extrusion in nine patients (20%), obstruction in nine patients (20%), and peritonitis requiring removal of the catheter in three patients (7%). This study shows the feasibility of percutaneous placement of peritoneal dialysis catheters by radiologists despite the need for improved technique and equipment.

A spontaneous dissecting aneurysm of the left middle cerebral artery with extension into its major branches is reported in a 23-year-old man. The characteristic pathological and angiographic findings are demonstrated, including the rarely documented progression of this lesion. The etiological factors, the early recognition by the neuroradiologist, and the possibility of immediate treatment are briefly discussed in this report.

Angiography of the ileopudendal vascular tree was performed for the evaluation of impotence in 73 patients. This technique proved useful in identifying those cases caused by vascular lesions in major arteries and small penile vessels. Organic diseases cause a much higher proportion of impotence than in generally suspected, with vascular occlusions causing the greatest number of cases. Nocturnal penile tumescence (NPT) studies are the best screening procedure in the author's view. In this series, NPT was followed by angiography, which provided the definitive diagnosis.

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