Small intestine & ampulla

Congenital anomalies

Atresia / stenosis

Last author update: 1 August 2012
Last staff update: 18 November 2020

Copyright: 2003-2022,, Inc.

PubMed Search: Small bowel[TIAB] atresia stenosis

Hanni Gulwani, M.B.B.S.
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Cite this page: Gulwani H. Atresia / stenosis. website. Accessed October 2nd, 2022.
Definition / general
  • Atresia: imperforate mucosal diaphragm or string-like segment of bowel
  • Stenosis: narrowing of lumen; less common
  • Complications: perforation, meconium peritonitis, brown bowel syndrome
  • Developmental failure, intrauterine vascular accidents, intussusceptions
Case reports
  • 46 day old boy with multiple areas of jejunal atresia with apple peel deformity (twisted around an artery) associated with 22q11 abnormality (Arch Pathol Lab Med 2000;124:880)
Additional references
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