Here, an ill-defined mass at the gastroesophageal junction produces mucosal ulceration and irregularity, which led to the clinical symptoms of pain and difficulty swallowing.

Here, an ill-defined mass at the gastroesophageal junction produces mucosal ulceration and irregularity, which led to the clinical symptoms of pain and difficulty swallowing.

图示胃食管交界处有性质不明的肿块，可见溃疡形成和不规则黏膜，临床表现为疼痛和吞咽困难。