Endoscopic ultrasonography

Abstract

Endoscopic ultrasonography (EUS) is a high-frequency, high-resolution, real-time modality for imaging the gastrointestinal tract and surrounding extramural structures. Originally introduced as a diagnostic tool, EUS is primarily used to stage luminal malignancies, including tissue acquisition, and to assess pancreatic and subepithelial lesions, particularly in individuals fit for surgery. In addition, therapeutic EUS has expanded into a range of indications for the treatment of gastrointestinal diseases. This review explores its diagnostic and therapeutic uses.