Pseudocyst

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

[2] Pancreatic pseudocysts may cause abdominal pain, nausea and vomiting, a bloated feeling, and trouble eating or digesting food.

[citation needed] Adrenal pseudocysts may cause abdominal pain, along with various gastrointestinal symptoms such as nausea, vomiting, and constipation.

[6] In American trypanosomiasis (Chagas’ disease), the parasite Trypanosoma cruzi forms pseudocysts, particularly within muscular and neurological tissue.

A pseudocyst is a cystic lesion that may appear as a cyst on scans, but lacks epithelial or endothelial cells.

[citation needed] Pseudocysts may form in a number of places, including the pancreas, abdomen, adrenal gland, and eye.

[2] Transabdominal ultrasound can be used to identify pseudocysts, which appear on the scan as echoic structures associated with distal acoustic enhancement.

[2] MRI and MRCP are effective methods of detecting pseudocysts, but are not regularly used because CT scans offer most of the needed information.

If the cysts are small and are not causing symptoms, careful observation with periodic CT scans is often done.

[3] Supportive medical care used to help small pseudocysts go away includes the use of intravenous fluids, analgesics, and antiemetics.

Endoscopic drainage tends to be the preferred method due to it being less invasive and having a high long-term success rate.

Once the catheter is removed, contrast is injected into the cyst cavity to determine the remaining size and to monitor progress.

The success rate is around 50%, and the unsuccessful drainages are mostly caused by large ductal leaks or blockage of the main pancreatic duct.

[2] The endoscopic method depends on the presence of a bulge into the stomach or duodenum to determine the site for catheterization.

Inherent risks include missing the pseudocyst, injuring nearby vessels, and inefficient placement of the catheter.