Annular pancreas and agenesis of the dorsal pancreas in a patient with polysplenia syndrome.
Polysplenia syndrome accompanied with situs inversus totalis and annular pancreas in an elderly patient.
There are three types of pancreatic fusion anomalies, pancreas divisum, annular pancreas and portal annular pancreas with the first being commonest and latter being the rarest of all of them.
Annular pancreas can be either complete or incomplete.
Duodenal atresia (1) Adeyemi Duodenal atresia, ring (10) of pancreatic tissue surrounding 2nd part Adeyemi Duodenal atresia, annular (10) pancreas around 2nd part of duodenum, mucosal diaphragm Adeyemi Duodenal atresia, complete (10) annular pancreas
surrounding duodenum Ruben et al.
On surgical exploration the neonate was found to have situs inversus with duodenal obstruction secondary to annular pancreas.
The obstruction is usually intrinsic due to duodenal web, annular pancreas (As in our patient), malrotation, atresia.
Annular pancreas is a rare congenital anomaly that is typically diagnosed in early childhood, either due to symptoms of complete duodenal obstruction and/or frequently associated additional congenital abnormalities.
Annular pancreas in adults: Imaging features in seven patients.
Harthun NL, Morse JH, Shaffer HA et al: Duodenal obstruction caused by intraluminal duodenal diverticulum and annular pancreas
in an adult.
Whipple's procedure, in our study was done in a patient with annular pancreas
Following mobilization of the duodenum, an annular pancreas, with complete duodenal obstruction, was found.
Both of the 2 main theories as to how annular pancreas develops involve the left and right ventral buds that normally form the head and neck of the pancreas.
malformation (ARM) was the highest (28%) followed by persistence of vitelline duct (15%), oesophageal atresia with tracheoesophageal fistula (TEF) (2%), congenital pyloric stenosis, intestinal atresia and stenosis (10% each), Hirschsprung's disease (9%), Exomphalos (8%), malrotation of gut (5%) and annular pancreas