title: CT-appearance of intraluminal duodenal diverticulum. The "halo" sign.
abstract: The barium appearance of intraluminal duodenal diverticulum has been classically described as a "windsock" appearance. However, the CT-scan appearance of this abnormality has not been well documented. A case report of a patient with intraluminal duodenal diverticulum is presented. The authors believe the CT-scan findings in the patient are virtually pathognomonic for this lesion and propose the term "halo" sign be applied to this previously undescribed finding.
authors.affiliation: Department of Diagnostic Radiology, Lahey-Hitchcock Medical Center, Burlington, MA 01805, USA.
authors.forename: A S
authors.initials: AS
authors.lastname: Tu
authors.forename: M H
authors.initials: MH
authors.lastname: Tran
authors.forename: C R
authors.initials: CR
authors.lastname: Larsen
mesh_terms: D001466:Barium Sulfate; D003287:Contrast Media; D004240:Diverticulum / Q000000981:diagnostic imaging*; D004378:Duodenal Diseases / Q000000981:diagnostic imaging*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate