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Cystic lesions

Pancreatic pseudocyst

Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 23 February 2013, last major update December 2012
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.


● Rarely is present in mediastinum
● Encapsulated collection of pancreatic secretion, blood, and necrotic material
● Almost always occurs in the lower part of the posterior mediastinum
● Gains access to the chest via esophageal or aortic hiatus

Clinical features

● Cystic posterior mediastinal mass that develops over a short time in a patient with pancreatitis (pseudocyst)
● CT/MRI shows fluid-containing mediastinal cystic mass (Radiographics 2002;22:S79)

End of Mediastinum > Cystic lesions > Pancreatic pseudocyst

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