The Good, the Bad, and the Ugly of the C-Loop: Imaging Spectrum of the Duodenum on Fluoroscopy

Participants
Lisa N. Johnson, MD, Seattle, WA (Presenter) Nothing to Disclose
Anna K. Shure, MD, Seattle, WA (Abstract Co-Author) Nothing to Disclose
Parisa Khoshpouri, MD, Coquitlam, BC (Abstract Co-Author) Nothing to Disclose
Shamus K. Moran, MD, Seattle, WA (Abstract Co-Author) Nothing to Disclose
Puneet Bhargava, MD, Seattle, WA (Abstract Co-Author) Editor, Reed Elsevier
Charles A. Rohrmann JR, MD, Seattle, WA (Abstract Co-Author) Nothing to Disclose
Bahar Mansoori, MD, Seattle, WA (Abstract Co-Author) Nothing to Disclose

For information about this presentation, contact:

mansoori@uw.edu

TEACHING POINTS

•Indications and technique of upper GI series, with emphasis on evaluation of the duodenum •Normal appearance /anatomy of the duodenum on fluoroscopy•Fluoroscopic imaging features of congenital and pathologic conditions that affect the duodenum

TABLE OF CONTENTS/OUTLINE

A.Introductiona.Proper upper GI technique, specifically to optimize evaluation of the duodenum b.Compare pros and cons of fluoroscopy to CT and MRI c.Review normal duodenal anatomy fluoroscopyB.Anatomic variants/congenital anomaliesDiverticulumFamilial visceral myopathy, megaduodenumAnnular pancreasMalrotation C.Inflammatory/infectiousBrunner gland hyperplasiaPeptic ulcer disease (clover leaf bulb, giant duodenal ulcer, Zollinger-Ellison Syndrome)Duodenitis (CMV, radiation)Crohn's diseaseAIDS: candidiasis, cryptosporidiosisAscariasisParaduodenal abscessD.Vascular pathology SMA syndromeE.Neoplastic conditionsBenignPolyps, Peutz-Jegher's syndromeMalignantPrimary carcinoma of duodenal bulbNeuroendocrine tumorCarcinomaLymphomaMetastasis Kaposi sarcomaLeiomyosarcomaMALT lymphomaExternal compression (pancreatic, renal malignancy)Gastric carcinoma causing afferent loop syndromeF.Rare entities on fluoroscopy Bouveret's syndromeDuodenal hematomaTuberculosis strictureLipomaIntramural pseudocystVarices

Abstract Archives of the RSNA, 2020