A case of metachronous development of @entity1721 in the @entity1 with XXXX .

@entity1 @entity662 @entity5 @entity2910 @entity957 @entity3909 @entity1721 @entity189 @entity6962
@entity2910 is a rare @entity5 consisting of both @entity3909 , with an incidence of 0.5%. There have been only a few case reports of @entity6962 and @entity957 coexisting in the esophagus. However, all of these are cases of synchronous or metachronous development of @entity6962 after chemoradiotherapy in @entity1 of @entity1721 . A 53-year-old @entity1 underwent esophagogas-troduodenoscopy because of @entity662 for several months. Endoscopic examination revealed a huge pedunculated esophageal polypoid mass. Endoscopic submucosal dissection (ESD) was performed and histopathologic examination confirmed @entity189 ( @entity6962 ). He refused additional esophagectomy. After 21 months, third follow-up endoscopy showed poorly-demarcated flat, faint discolored lesions at different location from the previous ESD site and endoscopic biopsies confirmed @entity957 . To the best of our knowledge, this is the first case of metachronous development of @entity1721 in a @entity1 with @entity2910 . (Korean J Gastroenterol 2014;64:364-369).
