Computed tomographic diagnosis of ureteral obstruction secondary to aneurysmal disease.

Three cases of ureteral obstruction associated with aortoiliac aneurysms were studied with computed tomography. CT was able to document the presence of aneurysm and display the perianeurysmal, fibrotic, contrast-enhancing mass accounting for ureteral obstruction. The value of computed tomography in the diagnosis and evaluation of these cases is described.