title: Small bowel intussusception due to metastatic intestinal carcinosarcoma from a pulmonary primary.
abstract: Metastatic small bowel tumors are rarely encountered. They usually present with small bowel obstruction, perforation, bleeding, or, rarely, intestinal intussusception. Only a few case reports have mentioned bowel symptoms due to metastatic malignancies. We report a seldom encountered clinical condition of intestinal intussusception from metastatic lung malignancy. Pathology demonstrated both epithelial and mesenchymal content, and the final diagnosis was carcinosarcoma. This case report indicates that intestinal metastases should be considered in the differential diagnosis for patients with lung malignancy and abdominal symptoms.
authors.affiliation: Department of General Surgery, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan ; Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan.
authors.forename: Ya-Fen
authors.initials: YF
authors.lastname: Hsu
authors.forename: Chi-Yu
authors.initials: CY
authors.lastname: Huang
authors.forename: Tong-Jong
authors.initials: TJ
authors.lastname: Chen
authors.forename: Yenn-Hwei
authors.initials: YH
authors.lastname: Chou
keywords: carcinosarcoma; intussusception; metastatic pulmonary tumors