title: Adenomatous polyp obscured by small-caliber rectal catheter at low-dose CT colonography: a rare diagnostic pitfall.
authors.affiliation: Department of Radiology, University of Wisconsin Medical School, E3/311 Clinical Science Center, 600 Highland Ave., Madison, WI 53792-3252, USA.
authors.forename: Perry J
authors.initials: PJ
authors.lastname: Pickhardt
authors.forename: J Richard
authors.initials: JR
authors.lastname: Choi
mesh_terms: D018256:Adenomatous Polyps / Q000000981:diagnostic imaging*; D000368:Aged; D003111:Colonic Polyps / Q000000981:diagnostic imaging*; D023881:Colonography, Computed Tomographic / Q000295:instrumentation*; D005188:False Negative Reactions; D005260:Female; D006801:Humans