Japanese

The Histological Appearances of Some Gastric Inflammatory Lesions that could be Mistaken for Malignancy Takashi Yao 1 , Masafumi Oya 2 , Ken-ichi Nishiyama 1 1Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University Keyword: pseudomalignant erosion , cytomegalovirus , 部分的脾動脈塞栓術 , 抗癌剤性胃炎 , carcinoma-like signet-ring cell pp.1715-1723
Published Date 2002/12/25
DOI https://doi.org/10.11477/mf.1403104613
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 Some inflammatory lesions of the stomach may be misdiagnosed as malignant tumors because of the presence of various atypical cells. The entities chosen for demonstration and discussion here are as follows. 1) Regenerative epithelium due to erosive gastritis or a peptic ulcer. 2) Pseudomalignant (pseudosarcomatous) cells in granulation tissue. 3) Viral infection. 4) Degenerative glands due to endoscopic mucosal resection. 5) Ischemic change due to partial splenic embolization. 6} Gastritis due to anti-cancer drugs. 7) Carcinoma-like signet ring cells in gastritis associated with Helicobacter pylori infection. The characteristic histological features are described and illustrated in this review. In order to prevent the misdiagnosis, pathologists must be familiar with the characteristic histological features of the atypical cells that appear in the above lesions. However, for the accurate diagnosis of each lesion, clinical information needs to be taken into consideration, so it is important that the clinician discuss the diagnosis with the pathologist when a pathological diagnosis differs from the clinical one.


Copyright © 2002, 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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