6- Gallbladder & pancreas

Common Complication: Pancreatic pseudocysts are frequently seen in patients with pancreatitis, particularly in cases of alcoholic pancreatitis.
Formation: When areas of necrotic pancreatic tissue become encapsulated by fibrous tissue, a cystic space forms. These cysts are termed "pseudocysts" because they lack an epithelial lining.
Resolution and Complications: While these cysts may resolve spontaneously, there is a potential risk for secondary infection.

Cause and Progression: Chronic pancreatitis often results from repeated acute pancreatitis episodes. The leading cause is chronic alcohol abuse.
Predisposing Factors: Notably, up to 40% of individuals with chronic pancreatitis may present with no identifiable predisposing factors.
Autoimmune Pancreatitis (AIP): This is a specific type of chronic pancreatitis characterized by prolonged inflammation, fibrosis, and the destruction of the exocrine pancreas. Over time, the disorder may lead to the loss of endocrine pancreatic tissue as well.

Histological Features: In chronic pancreatitis, key morphological indicators include parenchymal fibrosis and acinar cell destruction, alongside the dilation of the pancreatic ducts. There is relatively preserved function of the islets of Langerhans, which are crucial for maintaining hormonal balance.
Gross Appearance: Macroscopically, affected glands may appear hardened and can show extremely dilated ducts with visible calcified deposits.

Symptoms: Patients may report varying symptoms including:
- Severe pancreatic exocrine insufficiency leading to chronic malabsorption.
- Intense chronic pain.
- Episodes of jaundice.
- Non-specific digestive issues or persistent abdominal and back pain.
Prognosis: The long-term outlook for individuals with chronic pancreatitis is poor, with studies indicating a mortality rate of approximately 50% over a span of 20 to 25 years.