Clinical value of small probe endoscopic ultrasonography in the diagnosis and treatment of small esophageal leiomyoma

Objective To evaluate the diagnostic value of small probe endoscopic ultrasonography and to explore the clinical value of endoscopic mucosal resection(EMR) for esophageal small leiomyoma. Methods A total of 46 patients who diagnosed with esophageal SMTs by endoscope and EUS were selected, who were demanded endoscopic resection, and the clinical data and treatment outcomes of them were retrospectively analyzed. Results As showed by EU, 40 cases of the total 46 cases were originated from mucosal muscularis, 5 cases were originated from sub mucosal, and 1 case was from the muscularis propria layer.A total of 40 cases received EMR with complete excision, 4 cases received ESD, 2 cases received surgical treatment.Examinations of histopathological and immunohistochemical confirmed that the lesions were leiomyomas; both the lateral and basal margins of the specimens were free of tumor cells.None of the patients developed delayed bleeding or perforation.No tumor residual or recurrence was found during follow-up(rangeed 1-12months). Conclusion EUS is an effective method for diagnosing esophagus submucosal tumors, and EMR could be a preferred treatment for small esophagus leiomyoma. Key words: Leiomyoma; Esophagus; Endosonography