Fig. 1

Evaluation of the SMT and the LeCamp™ endoloop device. a an endoscopic image revealed a protruding submucous lesion with a smooth surface. b CT image showing a 1.8 cm × 5.2 cm × 2.9 cm soft tissue mass. c EUS image showing a hypoechoic mass originated from the muscularis propria layer. d the LeCamp™ endoloop and its delivery system