PMC3439945_01
The endoscopic tunnelling submucosal resection procedure. (a) A submucosal tumor was found in esophagus (26 cm from incisors). (b) After mucosal injection, a submucosal tunnel (about 5 cm long) was created by ESD technique. (c) The tumor was successfully exposed in the tunnel. (d) Tumor resection was being carried out in the tunnel. (e) The mucosal incision site was sealed by hemostatic clips. (f) The resected specimen was 1.5 cm x 2.0 cm.
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It was consisted of the following steps: mucosal injection and incision, submucosal tunnelling, tumor resection, and mucosal closure (Figure 1).
Pathology of the resected specimen. The pathology showed a leiomyoma (a) and clear margins (b) (magnifying x200).
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The pathology result showed an esophageal leiomyoma with clear margins (Figure 2).
Follow-up esophagoscopy. On postoperative month 2, the follow-up esophagoscopy demonstrated a well-healed mucosa.
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The follow-up esophagoscopy revealed a well-healed mucosa (Figure 3).