Medical Definition of Annular pancreas

  • Medical Author:
    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Annular pancreas: An abnormal ring of pancreas that encircles the duodenum and often causes intestinal obstruction.

Nausea and vomiting are the usual symptoms and reflect the intestinal obstruction. Complete obstruction is usually evident in the newborn period. Partial obstruction may not present until later in childhood or adulthood.

Diagnostic tests include upper GI series, abdominal CT scan, and endoscopy. The treatment is surgical. Complications include peptic ulcer disease and perforation of the intestine.

"Annular" is the adjective for "annulus" (a little ring).

Reviewed on 9/7/2018

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