ICD9 = ICD9|577, ICD9|751.7
MeshID = D010182
Pancreatic diseases include:
Pancreatitisis inflammationof the pancreas. There are two forms of pancreatitis, which are different in causes and symptoms, and require different treatment:
Acute pancreatitisis a rapidly-onset inflammation of the pancreas, most frequently caused by alcoholismor gallstones.
Chronic pancreatitis: A long-standing inflammation of the pancreas.
The pancreas is central in the pathophysiology of both major types of
diabetes mellitus. In type 1 diabetes mellitus, there is direct damage to the endocrine pancreasthat results in insufficient insulinsynthesis and secretion. Type 2 diabetes mellitus, which begins with insulin resistance, is characterized by the ultimate failure of pancreatic β cells to match insulin production with insulin demand.
Exocrine pancreatic insufficiency
Exocrine pancreatic insufficiency(EPI) is the inability to properly digest food due to a lack of digestive enzymes made by the pancreas. EPI is found in humans afflicted with cystic fibrosis and Shwachman-Diamond Syndrome. It is caused by a progressive loss of the pancreatic cells that make digestive enzymes. Chronic pancreatitisis the most common cause of EPI in humans. Loss of digestive enzymes leads to maldigestionand malabsorptionof nutrients.
Cystic fibrosis, also known as mucoviscidosis, is a hereditary disease that affects the entire body, causing progressive disability and early death. There is no cure for cystic fibrosis, and most affected individuals die young from lung failure. Cystic fibrosis is caused by a mutationin the cystic fibrosis transmembrane conductance regulator (CFTR) gene. The product of this gene helps create sweat, digestive juices, and mucus. Although most people without CF have two working copies of the CFTR gene, only one is needed to prevent cystic fibrosis. Cystic fibrosis develops when neither gene works normally. Therefore, it is considered an autosomal recessive disease. The name "cystic fibrosis" refers to the characteristic 'fibrosis' (tissue scarring) and cyst formation within the pancreas. Cystic fibrosis causes irreversible damage to the pancreas, which often results in painful inflammation. ( pancreatitis).
pancreatic pseudocystis a circumscribed collection of fluid rich in amylaseand other pancreatic enzymes, blood and necrotic tissue, typically located in the lesser sac.
Pancreas divisumis a malformationin which the pancreas fails to fuse together. It is a rare condition that affects only 6% of the world's population and of these few only 1% ever have symptoms that require surgery.
Annular pancreasis characterized by a pancreas that encircles the duodenum. It results from an embryological malformation in which the early pancreatic buds undergo inappropriate rotation and fusion, which can lead to small bowel obstruction.
Zollinger-Ellison syndromeis a collection of findings in individuals with gastrinoma, a tumor of the gastrin-producing cells of the pancreas. Unbridled gastrin secretion results in elevated levels of the hormone, and increased hydrochloric acid secretion from parietal cellsof the stomach. It can lead to ulceration and scarring of the stomach and intestinal mucosa.
Hemosuccus pancreaticus, also known as pseudohematobiliaor Wirsungorrhage, is a rare cause of hemorrhage in the gastrointestinal tract. It is caused by a bleeding source in the pancreas, pancreatic duct, or structures adjacent to the pancreas, such as the splenic artery, that bleed into the pancreatic duct. Patients with hemosuccus may develop symptoms of gastrointestinal hemorrhage, such as blood in the stools, maroon stools, or melena. They may also develop abdominal pain. Hemosuccus pancreaticus is associated with pancreatitis, pancreatic cancerand aneurysms of the splenic artery. Angiographymay be used to treat hemosuccus pancreaticus, where the celiac axisis injected to determine the blood vessel that is bleeding, because embolizationof the end vessel may terminate the hemorrhage. Alternatively, a distal pancreatectomymay be required to stop the hemorrhage.
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