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The double duct sign is a radiological finding characterized by the simultaneous dilation of the common bile duct and the main pancreatic duct.This sign is significant because it often indicates an obstruction in the distal bile duct and pancreatic duct, frequently caused by serious underlying pathologies such as pancreatic carcinoma or periampullary tumors. [1]
Gross pathology: Main duct, branch duct, and mixed duct lesions, which determines surgical management. Main duct lesion is the segmental or diffuse dilatation of main pancreatic duct greater than 5 mm without other causes of obstruction. Meanwhile, branch duct lesion is the pancreatic cyst more than 5 mm that communicates with the main duct.
Illustration of a dog's pancreas: Alveolus in the illustration refers to the acinar cells of the exocrine pancreas. The cells form circular clusters. [1] They are the cells which produce pancreatic enzymes needed for digestion of food. Symptoms: Lethargy, anorexia, emesis, abdominal pain: Complications
Neutering may have a part to play, as neutered dogs are more likely to get a luxating patella, possibly due to delayed growth plate closure in dogs neutered before puberty.
The pancreatic duct or duct of Wirsung (also, the major pancreatic duct due to the existence of an accessory pancreatic duct) is a duct joining the pancreas to the common bile duct. This supplies it with pancreatic juice from the exocrine pancreas , which aids in digestion .
The stone is impacted in the distal common bile duct. A nasobiliary tube has been inserted. Fluoroscopic image showing dilatation of the pancreatic duct during ERCP investigation. Endoscope is visible. Obstructive jaundice – This may be due to several causes Gallstones with dilated bile ducts on ultrasonography
The characteristic ERCP finding is segmental or diffuse irregular narrowing of the main pancreatic duct, usually accompanied by an extrinsic-appearing stricture of the distal bile duct. Changes in the extrapancreatic bile duct similar to those of primary sclerosing cholangitis (PSC) have been reported. [citation needed]
Type I: Most common variety (80-90%) involving saccular or fusiform dilatation of a portion or entire common bile duct (CBD) with normal intrahepatic duct. Type II: These cysts are present as an isolated diverticulum protruding from the CBD. Type III or Choledochocele: Arise from dilatation of duodenal portion of CBD or where pancreatic duct meets.