Pancreatic disease

ICD-10 | K85-K86, Q45.0-Q45.3
ICD-9 | 577, 751.7
MeSH | D010182

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Pancreatic diseases include:

## Contents

* 1 Pancreatitis
* 2 Diabetes mellitus
* 3 Exocrine pancreatic insufficiency
* 4 Cystic fibrosis
* 5 Pseudocysts
* 6 Congenital malformations
* 6.1 Pancreas divisum
* 6.2 Annular pancreas
* 7 Neoplasms
* 7.1 Zollinger-Ellison syndrome
* 8 Hemosuccus pancreaticus
* 9 See also

## Pancreatitis

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Pancreatitis is inflammation of the pancreas. There are two forms of pancreatitis, which are different in causes and symptoms, and require different treatment:

* Acute pancreatitis is a rapidly-onset inflammation of the pancreas, most frequently caused by alcoholism or gallstones.
* Chronic pancreatitis: A long-standing inflammation of the pancreas.

## Diabetes mellitus

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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 pancreas that results in insufficient insulin synthesis 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

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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 pancreatitis is the most common cause of EPI in humans. Loss of digestive enzymes leads to maldigestion and malabsorption of nutrients.

## Cystic fibrosis

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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 mutation in 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).

## Pseudocysts

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A pancreatic pseudocyst is a circumscribed collection of fluid rich in amylase and other pancreatic enzymes, blood and necrotic tissue, typically located in the lesser sac.

## Congenital malformations

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### Pancreas divisum

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Pancreas divisum is a malformation in 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 pancreas

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Annular pancreas is 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.

## Neoplasms

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See pancreatic cancer.

### Zollinger-Ellison syndrome

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Zollinger-Ellison syndrome is 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 cells of the stomach. It can lead to ulceration and scarring of the stomach and intestinal mucosa.

## Hemosuccus pancreaticus

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Hemosuccus pancreaticus, also known as pseudohematobilia or 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 cancer and aneurysms of the splenic artery. Angiography may be used to treat hemosuccus pancreaticus, where the celiac axis is injected to determine the blood vessel that is bleeding, because embolization of the end vessel may terminate the hemorrhage. Alternatively, a distal pancreatectomy may be required to stop the hemorrhage.

## See also

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* Pancreas

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