Long Term Follow up of Small Non-inflammatory Pancreatic Cysts

This study intends to investigate the long term follow-up of small non-inflammatory pancreatic cysts.

This study intends to investigate the long term follow-up of small non-inflammatory pancreatic cysts in a multicenter setting. Inclusion criteria: Patients with non-inflammatory pancreatic cystic lesions up to 3 cm in diameter referred to the University Hospital Hamburg Eppendorf, Israelitic Hospital Hamburg, Sana Klinikum Lichtenberg, Berlin and Krankenhaus Märkisch-Oderland,Strausberg from 2002 to 2007 identified from EUS database. Study design: At least 5 year-long term follow up by inclusion of clinical data, cross sectional imaging if available or actual US findings. Primary outcome: To determine the proportion of patients with increase is size and/or changed appearance Secondary outcomes: Rate of patients undergo pancreatic surgery (indication, histology of resected specimen). Rate of patients undergo FNA (fluid analysis, cytology).