Tissue diagnosis is required for gastric subepithelial lesions for differential diagnosis of GISTs. However, there has not been consensus about the best needle for EUS-guided sampling of these lesions.<\/p>\n\n\n\n
To evaluate the diagnostic yield of EUS-FNA for gastric subepithelial lesions of the proper muscle layer with large-bore 19 gauge needles.<\/p>\n\n\n\n
A prospectively maintained database was retrospectively reviewed to identify consecutive patients who underwent EUS-FNA with 19 and 22 gauge needles for gastric subepithelial lesions of the fourth endosonographic layer in a tertiary care referral center. EUS-FNA was performed by the same endosonographer, using the fanning technique, without on-site cytopathologist. Specimens were analysed through cell blocks by the same pathologist. Procedure results were categorized into diagnostic, defined as enough material for histopathology and immunohistochemistry, or nondiagnostic.<\/p>\n\n\n\n
Eighty-nine patients (mean age: 59 years, 77% women) underwent 92 EUS-FNA with 19 (75) or 22 (17) gauge needles. Mean lesion size was 22.6 mm. Overall diagnostic yield was 88%. The diagnostic yield of 19 gauge was higher than that of 22 gauge needle (92%x70.6%; p=0.0410), and similar for lesions >2 cm and <2 cm (93.7%x90.7%; p=0.9563). The best performance for 19 gauge needles was obtained performing <3 needle passes. Complication rate was 2.8%.<\/p>\n\n\n\n
Diagnostic yield of EUS-FNA with 19 gauge needles is 92% for gastric subepithelial lesions of the proper muscle layer. It is safe and highly valuable for differentiation between GIST and leiomyoma, no matter the size of the lesion.<\/p>","protected":false},"excerpt":{"rendered":"
Background: Tissue diagnosis is required for gastric subepithelial lesions for differential diagnosis of GISTs. However, there has not been consensus about the best needle for EUS-guided sampling of these lesions. Aim: To evaluate the diagnostic yield of EUS-FNA for gastric subepithelial lesions of the proper muscle layer with large-bore 19 gauge needles. Methods: A prospectively […]<\/p>","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[9],"tags":[406,663,662,524,661],"class_list":["post-2489","post","type-post","status-publish","format-standard","hentry","category-original-article","tag-diagnosis","tag-endoscopic-ultrasonography","tag-fine-needle-aspiration","tag-gastrointestinal-stromal-tumor","tag-leiomyoma"],"acf":[],"modified_by":null,"_links":{"self":[{"href":"https:\/\/revistaabcd.org.br\/pt-br\/wp-json\/wp\/v2\/posts\/2489"}],"collection":[{"href":"https:\/\/revistaabcd.org.br\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistaabcd.org.br\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistaabcd.org.br\/pt-br\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/revistaabcd.org.br\/pt-br\/wp-json\/wp\/v2\/comments?post=2489"}],"version-history":[{"count":0,"href":"https:\/\/revistaabcd.org.br\/pt-br\/wp-json\/wp\/v2\/posts\/2489\/revisions"}],"wp:attachment":[{"href":"https:\/\/revistaabcd.org.br\/pt-br\/wp-json\/wp\/v2\/media?parent=2489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistaabcd.org.br\/pt-br\/wp-json\/wp\/v2\/categories?post=2489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistaabcd.org.br\/pt-br\/wp-json\/wp\/v2\/tags?post=2489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}