Proposal of a New Macroscopic Classification of Superficial Esophageal Cancer from a Pathological Veiwpoint Tadashi Nishimaki 1 , Hidenobu Watanabe 2 , Otsuo Tanaka 1 , Koichi Sasaki 1 , Terukazu Muto 1 1The First Department of Surgery, Niigata University, School of Medicine 2The First Department of Pathology, Niigata University, School of Medicine pp.1377-1383
Published Date 1987/12/25
DOI https://doi.org/10.11477/mf.1403112854
  • Abstract
  • Look Inside
  • Cited by

 We proposed a new macroscopic classification of superficial esophageal cancer: Type Ⅰ (protruded type), Type IIa (superficially elevated type), Type Ⅱb (flat type), Type Ⅱc (superficially depressed type), and Type Ⅲ (excavated type).

 Sixty-two lesions of superficial esophageal cancer were classified according to this new classification and analyzed to define the features of each type. This classification reflected very well the depth of cancer invasion: all cases of Type Ⅰ and 72.7% of Type Ⅱa were invasive cancer down to the submucosa (sm cancer).

 Protrusion or elevation was among the important findings which suggested sm cancer. Invasion to the submucosa was also noted in 40% of Type Ⅱc, while only in 7.7% of Type Ⅱb. Thus, depression did also suggest sm invasion. Furthermore, close observation of the surface structure, in addition to this new classification, of cancerous lesion helped us estimate more precisely the depth of cancer invasion macroscopically.

Copyright © 1987, Igaku-Shoin Ltd. All rights reserved.


電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院