Endoscopic resection of rectal carcinoid tumors using aspiration lumpectomy.

Background And Study Aims: Although carcinoid tumors have malignant potential, complete resection can be curative if the lesion is located within the submucosal layer. In this study, we evaluated the effectiveness of endoscopic aspiration lumpectomy for the treatment of small rectal carcinoid tumors.

Patients And Methods: Eight patients with rectal carcinoid tumors less than 10 mm in diameter and located within the submucosa were treated by aspiration lumpectomy.

Endosonographic characterization of duodenal elevated lesions.

Background: Endoscopic diagnosis of duodenal elevated lesions is problematic for two reasons. Endoscopic biopsy often fails to confirm a histologic diagnosis of submucosal lesions. Moreover, a biopsy specimen is often insufficient to verify a differential diagnosis of mucosal lesions.