Submucosal tumors of the upper gastrointestinal tract and the role of endoscopic ultrasound
Background: Endoscopic ultrasound is an imaging method, which used to combine two basic diagnostic methods in gastroenterology, endoscopy and ultrasound. Endosonography has significantly enriched diagnostic methods and facilitated therapeutic procedures in gastroenterology. This method provides detailed images of gastrointestinal wall and its layers, enables accurate evaluation of different diseases in the wall, their spread to surrounding structures and lymph nodes, planning different modes of treatment and following the results. At present time, this is the only diagnostic method in gastroenterology for precise evaluation of submucosal tumors and differentiation from impressions of gastrointestinal wall.
Conclusions: The technological development of endosonographic instruments and ultrasonic probes has made it possible to perform doppler investigations, to obtain endosonographically guided fine needle aspiration cytology and different therapeutic procedures, including drainage of cystic lesions and local drug application. In the article, the author describes the role and application of endosonography in submucosal and gastrointestinal stromal tumors.
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