Undiagnosed significant gastrointestinal wall thickening or hypertrophy can endoscopic ultrasound and endoscopic ultrasound-fine needle aspiration help?

摘要

Background and Objectives:Many gastrointestinal tumors as diffuse circumferential malignancies as signet ring cell carcinoma and lymphoma may involve mainly the submucosal layer and hence are difficult to diagnose as they frequently yield negative endoscopic biopsies. This main aim of this study is to evaluate the accuracy of endoscopic ultrasound (EUS) and EUS-guided fine-needle aspiration (EUS-FNA) in the diagnosis of diffuse gastrointestinal (GI) lesions with inconclusive endoscopic biopsies.