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  • Title: Adrenal venography and ultrasound in the investigation of the adrenal gland: an analysis of 58 cases.
    Author: Davidson JK, Morley P, Hurley GD, Holford NG.
    Journal: Br J Radiol; 1975 Jun; 48(570):435-50. PubMed ID: 1227698.
    Abstract:
    Adrenal venography has been carried out in 58 patients with the left adrenal vein being successfully catheterized in 91 per cent and the right in 77 per cent. Of the 30 patients with primary hyperaldosteronism, 11 adenomas (12-35 mm diameter) have been demonstrated at venography and two of 15 mm suspected, all of which were confirmed surgically. Aldosterone levels in the adrenal vein plasma were raised on the affected side. In the group of proved micronodular hyperplasia, two patients had surgically confirmed macronodules and venography demonstrated one of 12 mm diameter. Two adenomas of 11 mm and one macronodule of 15 mm have been demonstrated at venography in the remainder who have not had an operation. Ultrasound was carried out in 12 patients with primary hyperaldosteronism, ten of which had tumours at venography. Two adenomas measuring 30 and 31 mm were outlined by ultrasound and confirmed surgically. Seven adenomas, including one macronodule (10-25 mm in diameter) were not defined. Three intra-adrenal phaeochromocytomas (45-90 mm) and one extra-adrenal (80-85 mm) were demonstrated at arteriography, identified by ultrasound and confirmed surgically. Of the ten patients with Cushing's syndrome three had enlarged glands at venography, this was confirmed surgically. Cumulative experience from this analysis and published reports indicate that venography will demonstrate tumours of 10 mm or more in diameter and outline enlarged glands; aldosterone assays will lateralize tumours as small as 3 mm; ultrasound will outline tumours of 30 mm and selective adrenal arteriography will demonstrate tumours of 10 mm. One patient developed acute adrenal cortical insufficiency with intra-adrenal extravasation on one side and thrombosis of the central vein on the opposite side. A second case developed temporary adreno-cortical insufficiency. Published reports indicate that the risk of complication is about 1 per cent. The report includes an anatomical study of the efferent adrenal veins in 50 patients paying particular attention to the diameter, number of accessory hepatic veins, and the angle of entry and position of the right adrenal vein.
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