Pseudocyst

Pseudocyst
A chest CT scan revealing pulmonary contusions, pneumothorax, and pseudocysts
Classification and external resources
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Pseudocysts are like cysts, but lack epithelial or endothelial cells. Initial management consists of general supportive care. Symptoms and complications caused by pseudocysts require surgery. Computed tomography (CT) scans are used for initial imaging of cysts, and endoscopic ultrasounds are used in differentiating between cysts and pseudocysts. Endoscopic drainage is a popular and effective method of treating pseudocysts.

This is not to be confused with the so-called "pseudocystic appearance", mainly radiographically, of other lesions, such as Stafne static bone cyst and aneurysmal bone cyst of the jaws.

A pseudocyst is a cystic lesion that may appear as a cyst on scans, but lacks epithelial or endothelial cells. An acute pancreatic pseudocyst is made of pancreatic fluids with a wall of fibrous tissue or granulation. Pseudocysts may form in a number of places, including the pancreas, abdomen, adrenal gland, and eye.

Pseudocysts are often asymptomatic. Symptoms are more common in larger pseudocysts, though the size and time present usually are poor indicators of potential complications.

Pancreatic pseudocysts may cause abdominal pain, nausea and vomiting, a bloated feeling, and trouble eating or digesting food. They also may become infected, be rupture, or block part of the intestine. Rarely, the infected pseudocyst causes jaundice or sepsis.

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