Abstract
A 69-year-old Japanese man underwent an endoscopic submucosal dissection (ESD) for early gastric cancer 2 years prior to admission at Fukuchiyama City Hospital. A follow-up esophagogastroduodenoscopy (EGD) revealed a butterfly-shaped brownish area in the cervical esophagus. A successful endoscopic submucosal dissection of the esophageal lesion was performed for total biopsy. Histopathological analysis of the resected specimen revealed moderately differentiated squamous cell carcinoma of the esophagus, cervical esophagus tumor type 0-IIb, a tumor diameter of 14x8 mm, T1b pathological findings (invading into submucosa), infiltrative growth α, lymphatic invasion (-), venous invasion (-), a horizontal tumor free margin and a vertical tumor free margin. The results demonstrated that the squamous cell carcinoma had invaded into the submucosal layer under the ectopic gastric mucosa. After endoscopic treatment, chemoradiation therapy was administered to the patient.
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