Abstract
Gastrointestinal SMTs account for a wide variety of etiologies and often pose a significant diagnostic challenge. Endoscopic biopsies show low diagnostic accuracy as these lesions are typically subepithelial. EUS is a useful tool to differentiate true SMTs from extrinsic compressions; however its differential diagnostic capabilities are still suboptimal. Additionally, the accuracy of EUS-fine needle aspiration is reportedly in the range of only 60-70% according to different studies, probably due to the very heterogeneous architecture of SMTs. Recently, CH-EUS has been reported as an useful adjunct in differential diagnosis of pancreatic tumors and lymph nodes. Our aim was to evaluate the potential role of CH-EUS in the differential diagnosis of SMTs.
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