Small bowel intussusception due to metastatic intestinal carcinosarcoma from a pulmonary primary
Ya-Fen Hsu1,3, Chi-Yu Huang1, Tong-Jong Chen2, Yenn-Hwei Chou1
1Department of General Surgery, 2Department of Pathology and Laboratory Medicine, Shin Kong Wu Ho-Su Memorial Hospital, 3Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
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.
Keywords: carcinosarcoma, intussusception, metastatic pulmonary tumors
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