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. 2024 May 28;10:131. doi: 10.1186/s40792-024-01934-6

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© The Author(s) 2024

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Fig. 1 — Preoperative findings. a Upper gastrointestinal endoscopy observed a submucosal lesion in the lower thoracic esophagus (white arrowhead). b EUS revealed a homogeneous hyperechoic mass originating from the submucosal layer (white arrowhead). c Upper GI series showed a submucosal mass in the lower thoracic esophagus (white arrowhead). d Contrast-enhanced CT image showed a mass lesion with high contrast enhancement in the right side of the lower esophagus (white arrowhead)