Endoscopic Retrograde Appendicitis Therapy for Treating Periappendiceal Abscess: First Human Case Report

1Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; 2The Academy of Medical Science, Zhengzhou University, Zhengzhou, China; 3Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang, China. Correspondence: Bingrong Liu, MD, PhD. E-mail: [email protected].