title: Renal pseudotumor due to gas-filled hepatic flexure.
abstract: Renal pseudotumors--both intrinsic and extrinsic--are numerous. On a recent urogram, performed with abdominal pressure and tomography, a mass lesion was simulated by the gas-filled colon. The problem was resolved with a combination of ultrasonography, nephrotomography, and barium enema examinations.
mesh_terms: D000368:Aged; D003106:Colon / Q000000981:diagnostic imaging* / Q000502:physiology; D003937:Diagnosis, Differential; D005260:Female; D005740:Gases; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis*; D011859:Radiography
chemical_list: D005740:Gases