BACKGROUND
Differentiating between benign and malignant submucosal tumors is difficult. Moreover, the natural course of benign-appearing SMTs is not clearly elucidated.
OBJECTIVES
To evaluate the natural course of upper gastrointestinal SMTs by endoscopic endosonography.
METHODS
We followed 25 consecutive patients with small (< 40 mm) SMTs for a mean period of 19 months. Evaluation included...