Endosonographic Features of Gastric Schwannoma: A Single Center Experience
Background/Aims Gastric schwannomas are rare benign mesenchymal tumors that are difficult to differentiate from other mesenchymal tumors with malignant potential, such as gastrointestinal stromal tumors. This study aimed to evaluate the characteristic findings of gastric schwannomas via endoscopic u...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Korean Society of Gastrointestinal Endoscopy
2016-11-01
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| Series: | Clinical Endoscopy |
| Subjects: | |
| Online Access: | http://www.e-ce.org/upload/pdf/ce-2015-115.pdf |
| _version_ | 1827802528936361984 |
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| author | Jong Min Yoon Gwang Ha Kim Do Youn Park Na Ri Shin Sangjeong Ahn Chul Hong Park Jin Sung Lee Key Jo Lee Bong Eun Lee Geun Am Song |
| author_facet | Jong Min Yoon Gwang Ha Kim Do Youn Park Na Ri Shin Sangjeong Ahn Chul Hong Park Jin Sung Lee Key Jo Lee Bong Eun Lee Geun Am Song |
| author_sort | Jong Min Yoon |
| collection | DOAJ |
| description | Background/Aims Gastric schwannomas are rare benign mesenchymal tumors that are difficult to differentiate from other mesenchymal tumors with malignant potential, such as gastrointestinal stromal tumors. This study aimed to evaluate the characteristic findings of gastric schwannomas via endoscopic ultrasonography (EUS). Methods We retrospectively reviewed the EUS findings of 27 gastric schwannoma cases that underwent surgical excision at Pusan National University Hospital during 2007 to 2014. Results Gastric schwannomas were mainly located in the middle third of the stomach with a mean tumor size of 32 mm. All lesions exhibited hypoechoic echogenicity, and 24 lesions (88.9%) exhibited heterogeneous echogenicity. Seventeen lesions (63.0%) exhibited decreased echogenicity compared to the normal proper muscle layer. Distinct borders were observed in 24 lesions (88.9%), lobulated margins were observed in six lesions (22.2%), and marginal haloes were observed in 24 lesions (88.9%). Hyperechogenic spots were observed in 21 lesions (77.8%), calcifications were observed in one lesion (3.7%), and cystic changes were observed in two lesions (7.4%). Conclusions During EUS, gastric schwannomas appear as heterogeneously hypoechoic lesions with decreased echogenicity compared to the normal proper muscle layer. These features may be helpful for differentiating gastric schwannomas from other mesenchymal tumors. |
| first_indexed | 2024-03-11T20:40:11Z |
| format | Article |
| id | doaj.art-47f3a9c4591e4892a7397911e7a43244 |
| institution | Directory Open Access Journal |
| issn | 2234-2400 2234-2443 |
| language | English |
| last_indexed | 2024-03-11T20:40:11Z |
| publishDate | 2016-11-01 |
| publisher | Korean Society of Gastrointestinal Endoscopy |
| record_format | Article |
| series | Clinical Endoscopy |
| spelling | doaj.art-47f3a9c4591e4892a7397911e7a432442023-10-02T02:51:40ZengKorean Society of Gastrointestinal EndoscopyClinical Endoscopy2234-24002234-24432016-11-0149654855410.5946/ce.2015.1156852Endosonographic Features of Gastric Schwannoma: A Single Center ExperienceJong Min Yoon0Gwang Ha Kim1Do Youn Park2Na Ri Shin3Sangjeong Ahn4Chul Hong Park5Jin Sung Lee6Key Jo Lee7Bong Eun Lee8Geun Am Song9 Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea Department of Pathology, Pusan National University School of Medicine, Busan, Korea Department of Pathology, Pusan National University School of Medicine, Busan, Korea Department of Pathology, Pusan National University School of Medicine, Busan, Korea Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea Department of Internal Medicine, Pusan National University School of Medicine, Busan, KoreaBackground/Aims Gastric schwannomas are rare benign mesenchymal tumors that are difficult to differentiate from other mesenchymal tumors with malignant potential, such as gastrointestinal stromal tumors. This study aimed to evaluate the characteristic findings of gastric schwannomas via endoscopic ultrasonography (EUS). Methods We retrospectively reviewed the EUS findings of 27 gastric schwannoma cases that underwent surgical excision at Pusan National University Hospital during 2007 to 2014. Results Gastric schwannomas were mainly located in the middle third of the stomach with a mean tumor size of 32 mm. All lesions exhibited hypoechoic echogenicity, and 24 lesions (88.9%) exhibited heterogeneous echogenicity. Seventeen lesions (63.0%) exhibited decreased echogenicity compared to the normal proper muscle layer. Distinct borders were observed in 24 lesions (88.9%), lobulated margins were observed in six lesions (22.2%), and marginal haloes were observed in 24 lesions (88.9%). Hyperechogenic spots were observed in 21 lesions (77.8%), calcifications were observed in one lesion (3.7%), and cystic changes were observed in two lesions (7.4%). Conclusions During EUS, gastric schwannomas appear as heterogeneously hypoechoic lesions with decreased echogenicity compared to the normal proper muscle layer. These features may be helpful for differentiating gastric schwannomas from other mesenchymal tumors.http://www.e-ce.org/upload/pdf/ce-2015-115.pdfEndosonographyMesenchymal tumorSchwannomaStomach |
| spellingShingle | Jong Min Yoon Gwang Ha Kim Do Youn Park Na Ri Shin Sangjeong Ahn Chul Hong Park Jin Sung Lee Key Jo Lee Bong Eun Lee Geun Am Song Endosonographic Features of Gastric Schwannoma: A Single Center Experience Clinical Endoscopy Endosonography Mesenchymal tumor Schwannoma Stomach |
| title | Endosonographic Features of Gastric Schwannoma: A Single Center Experience |
| title_full | Endosonographic Features of Gastric Schwannoma: A Single Center Experience |
| title_fullStr | Endosonographic Features of Gastric Schwannoma: A Single Center Experience |
| title_full_unstemmed | Endosonographic Features of Gastric Schwannoma: A Single Center Experience |
| title_short | Endosonographic Features of Gastric Schwannoma: A Single Center Experience |
| title_sort | endosonographic features of gastric schwannoma a single center experience |
| topic | Endosonography Mesenchymal tumor Schwannoma Stomach |
| url | http://www.e-ce.org/upload/pdf/ce-2015-115.pdf |
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