@article{oai:dmu.repo.nii.ac.jp:00005243,
 author = {Goda, Kenichi and Kanamori, Akira and Suzuki, Tsunehiro and Abe, Keiichiro and Kondo, Masayuki and Inaba, Yasunori and Yoshinaga, Tomonori and Abe, Yoko and Tanaka, Takanao and Kanazawa, Mimari and Nagashima, Kazunori and Minaguchi, Takahito and Yamamiya, Akira and Arisaka, Takahiro and Hoshi, Koki and Tominaga, Keiichi and Majima, Yuichi and Iijima, Makoto and Ishida, Kazuyuki and Irisawa, Atsushi},
 issue = {2},
 journal = {Dokkyo Medical Journal},
 month = {Jun},
 note = {We report about a patient with an extremely rare long-segment Barrett’s esophagus (LSBE) who developed extensive superficial adenocarcinoma and underwent radical (R0) resection based on an accurate preoperative diagnosis of tumor extent. A 68-year-old man with no subjective symptoms and no noteworthy medical history was diagnosed with adenocarcinoma after a biopsy of a protruding lesion in the lower esophagus. Narrow-band imaging (NBI) magnification endoscopy revealed that the protruded lesion was within the LSBE, and a flatly extended superficial esophageal adenocarcinoma (SEAC) was observed proximal to the protruded lesion. After confirming the extent of the tumorous lesion via endoscopic biopsy, subcircumferential endoscopic submucosal dissection (ESD) was performed for the extensive tumor, which resulted in a histological R0 resection. Prophylactic steroid therapy was performed to prevent refractory post-ESD stenosis. There was no residual tumor or recurrence of the cancer, and the patient’s postoperative course was favorable. Preoperative diagnosis of tumor extent using NBI magnification endoscopy may therefore be useful for characterizing SEAC occurring in the LSBE, given that detecting the presence and determining the extent of these tumors is normally difficult. Prophylactic therapy with local steroid injection can prevent refractory stenosis after quite extensive ESDs for SEACs in the LSBE.},
 pages = {113--118},
 title = {Curative Endoscopic Resection of a Widespread Superficial Adenocarcinoma in a Long-segment Barrett’s Esophagus},
 volume = {1},
 year = {2022}
}