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Revised Group Classification of Gastric Biopsy Interpretation with Special Reference to Group Ⅲ I. Kino 1 1Department of Pathology, Hamamatsu University School of Medicine pp.1071-1078
Published Date 1984/10/25
DOI https://doi.org/10.11477/mf.1403109609
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 Group classification of gastric biopsy interpretation has been revised about ten years after the first establishment as the following.

 Group Ⅰ: Normal mucosa and benign lesions without atypic. Normal gastric mucosa, gastric mucosa with intestinal metaplasia and other benign lesions without atypic.

 Group Ⅱ: Lesions showing atypic but diagnosed benign. Gastric mucosa with intestinal metaplasia with atypic and other benign lesions accompanied by atypic.

 Group Ⅲ: Borderline lesions between benign and malignant. Lesions which are difficult to diagnose benign or malignant in terms of cellular and structural atypic.

Note: When a lesion is diagnosed as Group Ⅲ, that diagnosis should be confirmed by rebiopsy or other procedure as much as possible.

 Group Ⅳ: Lesions strongly suspected of cancer. Lesions which are strongly suspected of cancer but cannot be definitely diagnosed as cancer.

Note 1: This group contains such cases that the amount of epithelium suspected of cancer is too little or the epithelium is too severely damaged to make a definite diagnosis.

Note 2: When a lesion is diagnosed as Group Ⅳ, it is desirable to make a definite diagnosis by performing rebiopsy if possible.

 Group Ⅴ. Cancer. Lesions which can be definitely diagnosed as cancer.

Note: As for the lesions of this group, it is desirable to describe the histological type of cancer additionally.

 Interpretation as Group Ⅲ is made in the gastric lesions such as adenoma, dysplasia or “borderline lesions” which are difficult to determine whether benign or malignant. Rebiopsy should be performed in such cases to get a definite diagnosis. Therefore, diagnosis of these “borderline” cases can be finally adenoma, dysplasia or erosive-regenerative change, or exceptionally adenocarcinoma.

 Interpretation as Group Ⅱ is made mainly in the atypical epithelia related to erosion and/or its regenerative process.


Copyright © 1984, Igaku-Shoin Ltd. All rights reserved.

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

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