Gastric Inverted Hyperplastic Polyp Removed Using Endoscopic Submucosal Dissection

Gastric subepithelial tumors (SETs) are usually asymptomatic and are often detected incidentally during screening endoscopy. A gastric inverted hyperplastic polyp (IHP) is characterized by downward growth of hyperplastic mucosa into the submucosal layer. Owing to these characteristics, a gastric IHP...

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Main Authors: Jee Won Boo, Joon Sung Kim, Byung-Wook Kim
Format: Article
Language:English
Published: Yong Chan Lee 2023-03-01
Series:The Korean Journal of Helicobacter and Upper Gastrointestinal Research
Subjects:
Online Access:http://helicojournal.org/upload/pdf/kjhugr-2022-0059.pdf
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author Jee Won Boo
Joon Sung Kim
Byung-Wook Kim
author_facet Jee Won Boo
Joon Sung Kim
Byung-Wook Kim
author_sort Jee Won Boo
collection DOAJ
description Gastric subepithelial tumors (SETs) are usually asymptomatic and are often detected incidentally during screening endoscopy. A gastric inverted hyperplastic polyp (IHP) is characterized by downward growth of hyperplastic mucosa into the submucosal layer. Owing to these characteristics, a gastric IHP is frequently misdiagnosed as a SET. Gastric IHPs are asymptomatic in most cases and are discovered incidentally. Notably, IHPs may be accompanied by an adenocarcinoma or anemia owing to chronic bleeding associated with this lesion; therefore, endoscopic submucosal dissection is recommended for complete excision of IHPs measuring > 2 cm. We report a case of gastric IHP that was diagnosed during screening endoscopy in an asymptomatic patient. We observed a whitish purulent exudate expressed from the SET, and endoscopic ultrasonography revealed a SET originating from the muscularis mucosa. Endoscopic submucosal dissection was performed to remove the SET, and final histopathological findings revealed a gastric IHP. This case report highlights that IHPs should be suspected in patients with a SET associated with whitish exudates.
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spelling doaj.art-418a648428ee40f4bdbccac8797178f42023-03-17T01:44:56ZengYong Chan LeeThe Korean Journal of Helicobacter and Upper Gastrointestinal Research1738-33312023-03-01231636710.7704/kjhugr.2022.0059759Gastric Inverted Hyperplastic Polyp Removed Using Endoscopic Submucosal DissectionJee Won Boo0Joon Sung Kim1Byung-Wook KimDivision of Gastroenterology, Department of Internal Medicine, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, KoreaDivision of Gastroenterology, Department of Internal Medicine, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, KoreaGastric subepithelial tumors (SETs) are usually asymptomatic and are often detected incidentally during screening endoscopy. A gastric inverted hyperplastic polyp (IHP) is characterized by downward growth of hyperplastic mucosa into the submucosal layer. Owing to these characteristics, a gastric IHP is frequently misdiagnosed as a SET. Gastric IHPs are asymptomatic in most cases and are discovered incidentally. Notably, IHPs may be accompanied by an adenocarcinoma or anemia owing to chronic bleeding associated with this lesion; therefore, endoscopic submucosal dissection is recommended for complete excision of IHPs measuring > 2 cm. We report a case of gastric IHP that was diagnosed during screening endoscopy in an asymptomatic patient. We observed a whitish purulent exudate expressed from the SET, and endoscopic ultrasonography revealed a SET originating from the muscularis mucosa. Endoscopic submucosal dissection was performed to remove the SET, and final histopathological findings revealed a gastric IHP. This case report highlights that IHPs should be suspected in patients with a SET associated with whitish exudates.http://helicojournal.org/upload/pdf/kjhugr-2022-0059.pdfendoscopic submucosal dissectioninverted hyperplastic polypstomach
spellingShingle Jee Won Boo
Joon Sung Kim
Byung-Wook Kim
Gastric Inverted Hyperplastic Polyp Removed Using Endoscopic Submucosal Dissection
The Korean Journal of Helicobacter and Upper Gastrointestinal Research
endoscopic submucosal dissection
inverted hyperplastic polyp
stomach
title Gastric Inverted Hyperplastic Polyp Removed Using Endoscopic Submucosal Dissection
title_full Gastric Inverted Hyperplastic Polyp Removed Using Endoscopic Submucosal Dissection
title_fullStr Gastric Inverted Hyperplastic Polyp Removed Using Endoscopic Submucosal Dissection
title_full_unstemmed Gastric Inverted Hyperplastic Polyp Removed Using Endoscopic Submucosal Dissection
title_short Gastric Inverted Hyperplastic Polyp Removed Using Endoscopic Submucosal Dissection
title_sort gastric inverted hyperplastic polyp removed using endoscopic submucosal dissection
topic endoscopic submucosal dissection
inverted hyperplastic polyp
stomach
url http://helicojournal.org/upload/pdf/kjhugr-2022-0059.pdf
work_keys_str_mv AT jeewonboo gastricinvertedhyperplasticpolypremovedusingendoscopicsubmucosaldissection
AT joonsungkim gastricinvertedhyperplasticpolypremovedusingendoscopicsubmucosaldissection
AT byungwookkim gastricinvertedhyperplasticpolypremovedusingendoscopicsubmucosaldissection