title: A CT scanning approach to the evaluation of left paraaortic pseudotumors.
abstract: Normal structures and organs were observed during clinical computed tomography as potential sources of false-positive tumor diagnosis. The left paraaortic region was a common location of pseudotumor masses that were frequently found to be of vascular or intestinal origin. Cases presented demonstrate that an appropriate use of conventional contrast medium can differentiate a normal anatomic structure simulating a mass from a pathologic process.
mesh_terms: D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging*; D000368:Aged; D001012:Aorta, Abdominal / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D007421:Intestine, Small / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014682:Vena Cava, Inferior / Q000002:abnormalities