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.
Causes, incidence, and risk factorsAnnular 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:
Tests include:
TreatmentSurgical bypass of the blocked part of the duodenum is the usual treatment for this disorder.
Expectations (prognosis)The outcome is usually good with surgery.
ComplicationsCall for an appointment with your health care provider if you or your child have any symptoms of annular pancreas.
ReferencesRusso MA, Redel CA. Anatomy, histology, embryology, and developmental anomalies of the stomach and duodenum. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger & Fordtran's Gastrointestinal and Liver Disease. 8th ed. Philadelphia, Pa: Saunders Elsevier; 2006:chap 45.
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.
Causes, incidence, and risk factorsAnnular 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:
Tests include:
TreatmentSurgical bypass of the blocked part of the duodenum is the usual treatment for this disorder.
Expectations (prognosis)The outcome is usually good with surgery.
ComplicationsCall for an appointment with your health care provider if you or your child have any symptoms of annular pancreas.
ReferencesRusso MA, Redel CA. Anatomy, histology, embryology, and developmental anomalies of the stomach and duodenum. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger & Fordtran's Gastrointestinal and Liver Disease. 8th ed. Philadelphia, Pa: Saunders Elsevier; 2006:chap 45.
Reviewed ByReview Date: 01/21/2010
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and George F. Longstreth, MD, Department of Gastroenterology, Kaiser Permanente Medical Care Program, San Diego, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
There are. There aren't annular LUNAR eclipses.
An annular rent refers to a partial tear in the outer layer of the intervertebral disc, while an annular tear involves a complete tear through the outer layer. Both conditions can result in back pain and may require medical intervention for relief.
Annular means like a ring, or round in shape. Several things in dermatology cause annular rashes.
the doctor say i have a minimal annular bulge at c-3-4 what does this mean?
An annular zone is a ring of fibres on the stem of a mushroom that is not well enough defined to be an annulus.
An annular eclipse is a solar eclipse in which the thin outer disc of the sun can be seen as a ring around the moon.
Fluid flow in an annular space occurs during a drilling operation of the gas and oil well. The correct prediction of the flow lies in the drilling mud in the annular space between the well.
no
NO
A posterior annular tear is a painful condition in which the annulus, or the part of the spine that holds the nucleus in place tears.
Because in homo-annular ring distance between C1 and C4(of butadiene structure in it) is less compare to C1 and C4 of heteroannular.So, in Homo-annular more overlap of pi system, more conjugation, more lamda max.
In general, at least two to five solar eclipses happen every year. However, annular eclipses rarely happen. The latest annular solar eclipse happened in April 29, 2014.