title: A Case of Neuroendocrine Malignant Tumor with Capsule Retention Diagnosed by Double-Balloon Enteroscopy.
abstract: The diagnosis of neuroendocrine malignant tumor in the small bowel is difficult [J Oncol 2008;2008:212067]. It is usually found intraoperatively during intestinal resection and confirmed by subsequent histological examination. We reported a case of jejunum neoplasm which was misdiagnosed as Crohn's disease by capsule endoscopy. Capsule endoscopy was stuck in the jejunum stricture and was removed with a snare under double-balloon enteroscopy. The pathology of the biopsy was jejunum small cell malignant carcinoma tending to neuroendocrine malignant tumor. The immunohistochemical result revealed that CD99 and Ki-67 were positive. The patient underwent intestinal resection and the diagnosis of neuroendocrine malignant tumor was confirmed.
authors.affiliation: Department of Gastroenterology, Changhai Hospital, The Second Military Medical University, Shanghai, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
authors.forename: Ling
authors.initials: L
authors.lastname: Zhang
authors.forename: Wenjun
authors.initials: W
authors.lastname: Zhang
authors.forename: Weiqiang
authors.initials: W
authors.lastname: Zheng
authors.forename: Duowu
authors.initials: D
authors.lastname: Zou
authors.forename: Zhaoshen
authors.initials: Z
authors.lastname: Li