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. 2024 Oct 18;10:237. doi: 10.1186/s40792-024-02045-y

Fig. 1.

Fig. 1

Preoperative findings. a Submucosal tumor of 18 mm × 17 mm was observed on the left wall, 35 cm from the upper incisors in the esophagogastroduodenoscopy. b Circular tumor continuous with the fourth layer was observed in endoscopic ultrasonography (yellow arrow). c 16 mm long nodule was found in the lower esophagus (yellow arrow)