title: Radiological diagnosis of duodenocaval fistula: a case report and literature review.
abstract: Duodenocaval fistula (DCF) is an uncommon but lethal clinical entity. The high mortality has been attributed to the difficulty of diagnosis before attempts at definitive therapy. In this case report, we describe a patient with a series of computed tomography (CT) examinations over a 2-mo period in hospital. A low-density air bubble appeared in the inferior vena cava (IVC) on the second day in hospital and became clear on day 19, and gradually enlarged. Magnetic resonance imaging (MRI) also clearly demonstrated a high-signal enteric contrast medium or thrombus and signal-void air bubbles in the IVC. However, cavography did not show the filling defect. We suggest that noninvasive CT and MRI should be chosen as a first-line investigation, and IVC, including the surrounding structures, should be carefully reviewed on images if DCF is clinically considered.
authors.affiliation: Department of Radiology, General Navy Hospital, 6# Fucheng Road, Beijing 100048, China. guoyong27@hotmail.com
authors.forename: Yong
authors.initials: Y
authors.lastname: Guo
authors.forename: Yan-Qun
authors.initials: YQ
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Lin
mesh_terms: D000368:Aged; D004378:Duodenal Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging*; D004618:Embolism, Air / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D007412:Intestinal Fistula / Q000175:diagnosis / Q000000981:diagnostic imaging*; D008279:Magnetic Resonance Imaging; D008297:Male; D014057:Tomography, X-Ray Computed; D016157:Vascular Fistula / Q000175:diagnosis / Q000000981:diagnostic imaging*; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*
references.citation: Am Surg. 1988 Mar;54(3):169-71
references.pmid: 3348551
references.citation: AJR Am J Roentgenol. 1997 Sep;169(3):915-6
references.pmid: 9275931
references.citation: J Vasc Surg. 2002 May;35(5):1010-2
references.pmid: 12021693
references.citation: Abdom Imaging. 1997 Jan-Feb;22(1):108-10
references.pmid: 9000369
references.citation: BJU Int. 2005 Aug;96(3):291-5
references.pmid: 16042716
references.citation: J Trauma. 1983 Nov;23(11):1015-6
references.pmid: 6632025
references.citation: West J Med. 1983 May;138(5):727-30
references.pmid: 6880190
references.citation: J Vasc Surg. 2001 Mar;33(3):643-5
references.pmid: 11241139
references.citation: J Gastrointest Surg. 2008 Apr;12(4):776-8
references.pmid: 17876676
references.citation: Ann Vasc Surg. 2004 Jan;18(1):52-8
references.pmid: 14727160
references.citation: AJR Am J Roentgenol. 2005 Sep;185(3):717-26
references.pmid: 16120925
references.citation: Urology. 1996 Oct;48(4):636-8
references.pmid: 8886075
references.citation: Arch Pathol Lab Med. 1991 Jan;115(1):93-5
references.pmid: 1987923