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Case Reports in Gastrointestinal Medicine
Volume 2012, Article ID 480135, 5 pages
Case Report

Angiosarcoma of Small Bowel Presenting with Obstruction: Novel Observations on a Rare Diagnostic Entity with Unique Clinical Presentation

1Robert Wood Johnson University Medical School, Piscataway, NJ 08854, USA
2Department of Surgery, General Surgery Service, RWJ University Hospital Hamilton, Hamilton, NJ 08690, USA
3Cancer Institute of New Jersey at Hamilton, Medical Oncology Service, Hamilton, NJ 08690, USA
4New Jersey School of Osteopathic Medicine, University of Medicine and Dentistry, Stratford, NJ 08084, USA

Received 7 September 2012; Accepted 1 October 2012

Academic Editors: A. Imagawa, Y. Moriwaki, and C. T. Shun

Copyright © 2012 Richard Siderits et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We present a case of angiosarcoma in small bowel, presenting with partial small bowel obstruction in a 79-year-old man with no history of radiation, chemotherapy, toxin exposure, or previous operative intervention. Angiosarcoma of small bowel is a rare entity which may present with nausea, abdominal pain, recurrent bleeding, and usually a history of prior radiation or exposure to specific toxins (polyvinyl chloride). Angiosarcoma of small bowel tends to spread rapidly and has a poor prognosis. We review the surgical and oncologic challenges. We report unique macroscopic findings of raised hyperemic margins, which are suggestive of a vasogenic lesion and the histologic feature of a partially retiform pattern with dense basement membrane material in an otherwise poorly differentiated lesion.