Abstract
1. Twenty patients with bilharzial hepatic fibrosis were radiologically investigated to assess the size of the azygos vein by antero-posterior chest tomography and azygography. 2. A new technique of interspinous intravenous azygography was adopted and proved successful. 3. The azygos vein was dilated, as compared with a normal control group, and the dilatation could be related to the extent of the oesophageal varices demonstrated by the oesophagogram.
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