Surgical importance of oblique projection in arteriography for carcinoma of the pancreas.

Oblique projections in celiac and superior mesenteric angiography have been of value in patients with carcinoma arising in various parts of the pancreas. Oblique views allow better perception of the slight and uncertain changes in the pancreatic vessels, which are not discernible on anteroposterior projections because of overlapping with the extrapancreatic vessels and the spine. Anteroposterior and oblique views of both celiac and superior mesenteric arteries are the first, and, therefore, the most essential, step in angiography of lesions of the pancreas.