An annular pancreas is a ring of pancreatic tissue that
encircles the duodenum (the first part of the small intestine).
Normally, the pancreas sits next to, but does not surround, the
duodenum. Annular pancreas is a congenital defect, which means
it is present at birth. Symptoms occur when the ring of pancreas
squeezes and narrows the small intestine so that food cannot
pass easily or at all. Newborns may have symptoms of complete
blockage of the intestine. However, up to half of people with
this condition do not have symptoms until adulthood. There are
also cases that are not detected because the symptoms are mild.
Conditions that may be associated with annular pancreas include:
Newborns may not tolerate feedings. They may spit up more than
normal, not drink enough breast milk or formula, and cry. Adult
symptoms may include: Surgical bypass of the blocked part of the
duodenum is the usual treatment for this disorder. The outcome
is usually good with surgery. Adults with an annular pancreas
are at increased r