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Duodenal carcinoid tumor resected by strip biopsy.

The patient was a 56-year-old male in whom gastroscopy during a health check-up revealed a protruding lesion on the anterior wall of the duodenum. Biopsy was performed, examination of the specimen yielded a diagnosis of carcinoid tumor, and the patient was referred to our hospital. Two-channel endoscopy demonstrated a 4-mm-diameter tumor. The tumor together with normal tissue surrounding it was resected by the strip biopsy method. Strip biopsy is a type of endoscopic mucosal resection that appears to be an excellent technique for reliable and complete tumor removal.