Figure 2.

Incorrect diagnosis of T staging in a case of poorly differentiated and partial signet ring cell gastric cancer. (A) Endoscopic image of the lesion showing an ulcer lesion located in the gastric antrum; (B) EUS image of the lesion showing a 17-mm thick hypoechoic lesion that spreads throughout the entire wall and invades the serosa invasion (dotted line). The corresponding surgical specimen confirmed poorly differentiated and partial signet ring cell gastric cancer confined to the submucosal layer.