title: Small Bowel Obstruction Caused by Carcinoid Tumor and Incidental Capsule Retention.
abstract: Capsule endoscopy (CE) is a sensitive modality for examining the small bowel and is commonly employed to identify a variety of small bowel pathologies. We report a case of capsule retention leading to diagnosis of a chronic condition. A 60-year-old female presented with abdominal pain, nausea, and weight loss for 3 years. Physical exam revealed a mildly tender abdomen with hypoactive bowel sounds. Laboratory was normal. Abdominal radiographs showed a partial small bowel obstruction with retained capsule. Abdominal computed tomography (CT) demonstrated a retained capsule in the mid-portion of the jejunum, dilated small bowel, and terminal ileal mass. She underwent exploratory laparotomy showing an ileal mass with hepatic metastasis. A right hemicolectomy, reanastomosis, and removal of the retained capsule were performed. Pathology showed well-differentiated carcinoid tumor. She was discharged home for further treatment with oncology. Carcinoid tumors of the small bowel usually present with abdominal pain or small bowel obstruction. Our patient had intermittent small bowel obstruction due to a carcinoid tumor and retained capsule causing her symptoms. CE is a valuable tool but requires extensive consideration and possible patency capsule prior to use in patients presenting with symptoms consistent with Crohn's disease or small bowel tumor.
authors.affiliation: Department of Internal Medicine, University of Missouri, Columbia, USA.
authors.forename: Atul
authors.initials: A
authors.lastname: Singla
authors.affiliation: Department of Internal Medicine, University of Missouri, Columbia, USA.
authors.forename: Todd
authors.initials: T
authors.lastname: Kilgore
authors.affiliation: Department of Internal Medicine, University of Missouri, Columbia, USA.
authors.forename: Vanessa K
authors.initials: VK
authors.lastname: Kuwajima
authors.affiliation: Department of Anatomical Sciences, University of Missouri, Columbia, USA.
authors.forename: Alberto
authors.initials: A
authors.lastname: Diaz-Arias
authors.affiliation: Department of Internal Medicine, University of Missouri, Columbia, USA.
authors.forename: Matthew L
authors.initials: ML
authors.lastname: Bechtold
keywords: Capsule endoscopy; Carcinoid tumor; Small bowel obstruction