title: Apparent early-stage esophageal collision tumor.
authors.affiliation: Department of Endoscopy, Shandong Provincial Qianfushan Hospital, Jinan, Shandong, People's Republic of China.
authors.forename: Xinyong
authors.initials: X
authors.lastname: Jia
authors.affiliation: Department of Endoscopy, Shandong Provincial Qianfushan Hospital, Jinan, Shandong, People's Republic of China.
authors.forename: Guodong
authors.initials: G
authors.lastname: Li
authors.affiliation: Department of Endoscopy, Shandong Provincial Qianfushan Hospital, Jinan, Shandong, People's Republic of China.
authors.forename: Haiyan
authors.initials: H
authors.lastname: Dong
authors.affiliation: Department of Endoscopy, Shandong Provincial Qianfushan Hospital, Jinan, Shandong, People's Republic of China.
authors.forename: Qiuping
authors.initials: Q
authors.lastname: Pang
authors.affiliation: Department of Endoscopy, Shandong Provincial Qianfushan Hospital, Jinan, Shandong, People's Republic of China.
authors.forename: Hailan
authors.initials: H
authors.lastname: Zhai
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging / Q000473:pathology*; D019160:Endosonography; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D004945:Esophagoscopy; D006801:Humans; D007889:Leiomyoma / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D062048:Narrow Band Imaging; D018193:Neoplasms, Complex and Mixed / Q000000981:diagnostic imaging / Q000473:pathology*