Description A<unk>  is a cystic lesion that may appear as a cyst on scans, but lacks epithelial or endothelial cells. An acute pancreatic<unk>  is made of pancreatic fluids with a wall of fibrous tissue or granulation.<unk> s may form in a number of places, including the pancreas, abdomen, adrenal gland, and eye. Pancreatic<unk> s The most common and effective method of diagnosing a pancreatic<unk>  is with a CT scan. A<unk>  generally appears as a fluid-filled mass. In some instances, other methods must be used to distinguish between a normal cyst and a<unk> . This is usually accomplished with endoscopic ultrasound or with fine needle aspiration. Transabdominal ultrasound can be used to identify<unk> s, which appear on the scan as echoic structures associated with distal acoustic enhancement. They tend to be round and enclosed in a smooth wall.<unk> s may appear more complex when young, hemorrhaged, or when complicated due to infection. The transabdominal ultrasound has a sensitivity rate in detection of pancreatic<unk> s of 75%-90%, making it inferior to a CT scan, which has a rate of 90%-100%. CT scans are more accurate, and provide more detail regarding the<unk>  and its surroundings. The CT scan's weakness is its lack of differentiation between<unk> s and cystic neoplasm. Also, the intravenous contrast given at the time of the CT scan may worsen kidney dysfunction. MRI and MRCP are effective methods of detecting<unk> s, but are not regularly used because CT scans offer most of the needed information. These scans do, however, provide better contrast, which allows for better characterization of fluid collections, depicting debris within the collections, and detection of bleeding. Endoscopic ultrasound is generally used as a secondary test to further evaluate the cysts found in other tests, and is used when determining if a cyst is a<unk>  or not. Adrenal<unk> s Adrenal<unk> s are found in much the same way as pancreatic<unk> s, with CT scans. In addition, adrenalectomies are used to diagnose the lesion and sometimes relieve pain.
Pseudocyst
Cyst
Cystitis cystica
Retroperitoneal fibrosis
Keratocyst
Pancreatic cyst
Volvulus
Epulis