Morocho, BryantBose, ParomaGrayson, BritneyCroffie, Joseph M.Billmire, Deborah F.2019-12-062019-12-062019-11Morocho, B., Bose, P., Grayson, B., Croffie, J. M., & Billmire, D. F. (2019). Retrograde gastroesophageal intussusception: Initial presenting feature of achalasia in a teenager. Journal of Pediatric Surgery Case Reports, 50, 101300. https://doi.org/10.1016/j.epsc.2019.101300https://hdl.handle.net/1805/21429A 16-year-old Caucasian male presented with acute vomiting and dysphagia. Imaging studies revealed retrograde gastroesophageal intussusception (RGEI), which reduced prior to diagnostic laparoscopy. No clear etiology for RGEI was identified at that time, so further surgical intervention was deferred. He returned several months later with persistent dysphagia. Imaging, endoscopy, and endoluminal function imaging probe then diagnosed achalasia. He underwent a second laparoscopy for Heller myotomy and Dor fundoplication. This is the first report of RGEI preceding a diagnosis of achalasia.enPublisher Policyretrograde esophageal intussusceptionachalasiaHeller myotomyArticle