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High-Resolution Endoscopic Ultrasound: Clinical T-Staging of Superficial and Subepithelial Gastrointestinal Neoplasias

  • Hans SeifertEmail author
  • Daisuke Kikuchi
  • Naohisa Yahagi
Chapter

Abstract

High-resolution endoscopic ultrasound (hr-EUS) with miniprobes performed during diagnostic endoscopy yields information on invasion depth of early cancer and on lesions arising in intramural echo structures. This chapter explains the diagnostic characteristics of hr-EUS images of early mucosal neoplasias and of the most prevalent types of intramural tumors. Imaging by hr-EUS characterizes subepithelial tumors for size, invasiveness, and wall layer of origin, and distinguishes superficial mucosal neoplasias from deeply submucosa-invasive early cancer with about 90% accuracy in most locations of the GI tract. Hr-EUS imaging should be available when the decision is taken between endoscopic or surgical resection for subepithelial tumors or for superficial versus submucosa-invasive early cancer.

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Copyright information

© Springer International Publishing 2019

Authors and Affiliations

  1. 1.Department of Internal Medicine – Gastroenterology, University Hospital OldenburgOldenburgGermany
  2. 2.Department of Gastroenterology and Endoscopy Unit, Toranomon HospitalTokyoJapan
  3. 3.Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of MedicineShinjuku-kuJapan

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