[Intraluminal duodenal diverticulum. An unusual duodenal image. Apropos of 3 cases].

A rarely observed digestive tract disorder, an intraluminal duodenal diverticulum is usually discovered during the course of a barium gastroduodenal follow-through examination. Radiological appearances are characteristic: intraluminal globular opaque image surrounded by a clear border. Clinical signs are absent or non-specific, and surgery is rarely indicated, except when the lesions are poorly tolerated or complications develop.

[Angioscintigraphy in venous pathology. Comparison of isotope angioscintigraphy and radiologic examination].

Results of vascular radiology and isotope examinations were compared in 48 patients with suspected ileocaval lesions (37 cases) or affections of the veins of the upper limb or superior vena cava (11 cases). Isotopic examination, which can be performed in ambulatory patients, respects normal hemodynamic conditions, is painless, and can be repeated, was found to give valid results, positive correlations with radiological investigation findings being present in 43 cases. Lack of correlation in the remaining 5 patients could have resulted from the period of time elapsed between the two examinations or the techniques employed during each investigation.

[The use of arteriography in the pharmacological study of a vasodilator substance].

The administration of a vasodilator substance is followed by the development of a higher contrast gradient in a given film in comparison with a reference X-ray carried out in the same subject under comparable technical conditions. Comparative densitometric measurement of the contrast gradient in the two successive arteriographic series, one with and one without the injection, arterial or venous, of a vasodilator substance (Couramine-Rutine) represents a valuable method for the study in man of the action of the substance in a visceral territory. The present study was limited to the kedney (79 cases), ans the territory of the superior mesenteric (46 cases).