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KMID : 1038120170500010064
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Clinical Endoscopy
2017 Volume.50 No. 1 p.64 ~ p.68
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Mucosal Incision and Forceps Biopsy for Reliable Tissue Sampling of Gastric Subepithelial Tumors
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Shin Sa-Young
Lee Sang-Jin
Jun Jae-Bum
Park Jong-Kyu
Seo Hyun-Il
Han Koon-Hee
Kim Young-Don
Jeong Woo-Jin
Cheon Gab-Jin
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Abstract
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Background/Aims: The diagnostic efficacy of current tissue sampling techniques for gastric subepithelial tumors (SETs) is limited. Better tissue sampling techniques are needed to improve pathological diagnosis. The aim of this study was to evaluate the safety and efficacy of a new technique, mucosal incision and forceps biopsy, for reliable tissue sampling of gastric SETs.
Methods: This study enrolled 12 consecutive patients who underwent mucosal incision and forceps biopsy of gastric SETs between November 2011 and September 2014 at Gangneung Asan Hospital. The medical records of patients were reviewed retrospectively. The safety and diagnostic yield of this method were evaluated.
Results: By performing mucosal incision and forceps biopsy, we were able to provide a definitive histological diagnosis for 11 out of 12 cases. The pathological diagnoses were leiomyoma (3/11), gastrointestinal stromal tumor (GIST; 2/11), lipoma (2/11), schwannoma (1/11), and ectopic pancreas (3/11). In cases of leiomyoma (n=3) and GIST (n=2), tissue samples were of sufficient size to allow immunohistochemical staining. In addition, the mitotic index was evaluated in two cases of GIST. There were no procedure-related complications.
Conclusions: Mucosal incision and forceps biopsy can be used as one of several methods to obtain adequate tissue samples from gastric SETs.
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KEYWORD
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Stomach, Biopsy, Gastroscopy, Diagnosis
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