Small bowel (small intestine)
Benign tumors and tumor-like conditions
Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 20 December 2012, last major update August 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.
● Rare single or multiple benign vascular tumors, often in ileum and mid-jejunum
● Either diffuse, circumscribed or papillary growths
● May cause anemia, hemorrhage, intussusception, melena, obstruction, perforation (Zhonghua Bing Li Xue Za Zhi 2005;34:275)
● May be associated with hemangiomas elsewhere
Types of hemangiomas
● Capillary: usually asymptomatic, small, solitary, composed of tightly packed capillaries
● Cavernous: localized or diffuse; blood filled sinuses with minimal connective tissue; often symptoms of a mass or bleeding
● Arteriovenous: Most common type; abnormal veins and arteries, but otherwise resembles cavernous hemangioma
● 9 year old girl with melena, anemia and cavernous hemangioma (Gastroenterol Clin Biol 2008;32:15)
● 14 year old boy with solitary cavernous hemangioma in proximal small intestine that caused iron deficiency anemia beginning at age 3 years (Arch Pathol Lab Med 1993;117:939)
● 81 year old woman with jejunal hemangioma (J Korean Surg Soc 2011;80:362)
● Combined hemangioma and angiodysplasia (Am J Surg 2010;200:e30)
Proliferation of dilated vessels and small capillaries
End of Small bowel (small intestine) > Benign tumors and tumor-like conditions > Hemangioma
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