An annular pancreas is a ring of pancreatic tissue that encircles the duodenum.And Polyhydramnios is a medical condition describing an excess of amniotic fluid in the amniotic sac.
Polyhydramnios (polyhydramnion, hydramnios, polyhydramnios) is a medical condition describing an excess of amniotic fluid in the amniotic sac. It is seen in about 1% of pregnancies. It is typically diagnosed when the amniotic fluid index (AFI) is greater than 24 cm. There are two clinical varieties of polyhydramnios: A single case may have one or more causes, including intrauterine infection (TORCH), rh-isoimmunisation, or chorioangioma of the placenta. In a multiple gestation pregnancy, the cause of polyhydramnios usually is twin-to-twin transfusion syndrome. Annular Pancreas. The pancreas is an organ that is located in the posterior (back) of your abdomen. It is connected by a duct to a part of the small intestine called the duodenum. The pancreas aids in the digestion of food. It is responsible for excreting insulin into the bloodstream to transform glucose into energy. It also secretes enzymes into the intestines to directly aid in the digestion of food. Definition. An annular pancreas is a ring of pancreatic tissue that encircles the duodenum (the first part of the small intestine). The normal position of the pancreas is next to, but not surrounding the duodenum. The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted. An annular pancreas can be asymptomatic or can cause external compression on the second portion of the duodenum, which creates a partial or complete obstruction. Annular pancreas is almost invariably associated with an intrinsic cause of duodenal obstruction (duodenal atresia). In children born with the condition, the second portion of the duodenum is either partially or completely surrounded by pancreatic tissue. Most cases of annular pancreas are diagnosed early in life when patients present with symptoms of duodenal Annular pancreas. The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted. Annular pancreas is a rare condition in which the second part of the duodenum is surrounded by a ring of pancreatic tissue continuous with the head of the pancreas. This portion of the pancreas can constrict the duodenum and block or impair the flow of food to the rest of the intestines. It is typically associated with abnormal embryological development, however adult cases can develop. It can result from growth of a bifid ventral pancreatic bud around the duodenum, where the parts of the bifid ventral bud fuse with the dorsal bud, forming a pancreatic ring. A, In this view, the stomach and first segment of the duodenum as well as the gallbladder are shown. A portion of the pancreas is shown as an echogenic structure between the stomach and the duodenum. B, Angling the transducer shows the choledochal cyst at the site where the CC arrow is pointing. This view shows a portion of the stomach, the first segment of the duodenum, and the choledochal cyst. Annular pancreas has also been associated with polyhydramnios (excess amniotic fluid during pregnancy). Annular pancreas is a rare condition that occurs in only one in every 20,000 newborns. It more frequently occurs in males (Jarry et al., 2011). The pancreas aids in the digestion of food. It is responsible for excreting insulin into the bloodstream to transform glucose into energy. It also secretes enzymes into the intestines to directly aid Extrinsic duodenal obstruction may be caused by malrotation with Ladd’s bands or a preduodenal por-tal vein or annular pancreas. The annular pancreas itself is not believed to be the cause of obstruction, as there is usually an associated atresia or stenosis in these patients. Duodenal obstructions usually occur in the second part of the duodenum. Duodenal obstruction presents up to gestational week 20 with a double-bubble phenomenon due to the simultaneous distention of the stomach and the first part of the duode-num. In more than 30% of cases, maternal polyhydramnios is present, and in some cases, serial amniotic aspiration has been reported as neces-sary.
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what is the relation between annular pancreas and polyhydramnios