The Korean Journal of Gastroenterology :eISSN 2233-6869 / pISSN 1598-9992

 

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Fig. 1. A 5cm hypoechoic mass lesion with regular margin probably arising from the 4th layer (muscular propria) at the sigmoid colon level was detected by endoscopic ultrasonography.
Korean J Gastroenterol 2020;76:322~326 https://doi.org/10.4166/kjg.2020.114
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