Radiotherapy-induced fibrosarcoma of the esophagus.

Abstract

A patient presented with a 5-year history of slowly progressive dysphagia. He had moderately differentiated squamous cell carcinoma in the middle thoracic esophagus and underwent partial esophagogastrostomy 16 years prior. The patient with postoperative anastomotic stenoses was treated with radiotherapy at a total dose of 60 Gy after esophagectomy. Endoscopic submucosal dissection (ESD) was used to treat the recurrent tumor.Clinical specimens were obtained from the ESD and the tumor was pathologically confirmed to be fibrosarcoma.