Endoscopic Ultrasonography in the Evaluation of Smooth Muscle Tumors of the Upper Gastrointestinal Tract: A Comparison with Computed Tomography, Endoscopy, and Barium Meal

摘要: Submucosal gastrointestinal (GI) tumors are usually detected by the double contrast barium meal because of a contour or smooth margined filling defect in column. Distinction between benign and malignant lesion may be difficult impossible [1–5]. With endoscopy submucosal neoplasma is visualized as bulge covered with normal mucosa occasionally associated central ulcer [6, 7]. Endoscopic biopsy not helpful ascertaining diagnosis cannot always reached standard forceps without using special techniques [8].