Arteriography has been used in the diagnosis of a wide variety of diseases of the liver (1–4). Recognition of these diseases requires an understanding of the overlapping vascular patterns encountered in the normal and in the abnormal liver. In the present communication 195 celiac and superior mesenteric arteriograms are reviewed, and several factors frequently used in their interpretation are compared. To improve objectivity the final diagnosis, history, physical and other findings were withheld (until the end of the study) from the radiologists who analyzed the arteriographic patterns of the liver. Included in the category studied were arterial tortuosity, displacement, encasement, the presence of primary arterial disease, and the arterial capillary phase or hepatogram. Material and Methods Celiac and superior mesenteric arteriograms of reasonably good quality of 195 patients were studied. The “normal” group, which served as the control, was comprised of 96 subjects in whom subsequent examinations reveal...