Abstract
An 80-year-old man was diagnosed as having a duodenal submucosal tumor located at the anterior wall of the duodenal bulb in CT performed as a pre-operative examination for bladder cancer. The size of the tumor was presumed to be about 40 mm.
The tumor blocked the second portion of the duodenum and obstructive symptoms occurred. ESD was performed to resect the duodenal submucosal tumor.
The size of the tumor was 47×27×29 mm and histological examination showed it to be Brunner’s gland adenoma. The treatment for Brunner’s gland adenoma is endoscopic resection or surgical resection. The method of endoscopic resection is generally polypectomy using a snare or EMR. ESD is one of the therapeutic procedures used, but it is technically difficult and indications have to be carefully considered.
