title: Angiosarcoma of small bowel presenting with obstruction: novel observations on a rare diagnostic entity with unique clinical presentation.
abstract: 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.
authors.affiliation: Robert Wood Johnson University Medical School, Piscataway, NJ 08854, USA.
authors.forename: Richard
authors.initials: R
authors.lastname: Siderits
authors.forename: Frederick
authors.initials: F
authors.lastname: Poblete
authors.forename: Biren
authors.initials: B
authors.lastname: Saraiya
authors.forename: Cheryl
authors.initials: C
authors.lastname: Rimmer
authors.forename: Anup
authors.initials: A
authors.lastname: Hazra
authors.forename: Le
authors.initials: L
authors.lastname: Aye