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Abdominal Imaging

, Volume 36, Issue 2, pp 196–205 | Cite as

Incidental pancreatic cysts on 3D turbo spin echo magnetic resonance cholangiopancreatography: prevalence and relation with clinical and imaging features

  • Rossano Girometti
  • Sergio Intini
  • Giovanni Brondani
  • Giuseppe Como
  • Francesco Londero
  • Fabrizio Bresadola
  • Chiara Zuiani
  • Massimo Bazzocchi
Article

Abstract

Purpose

To estimate the prevalence of incidental pancreatic cysts (IPCs) in asymptomatic patients addressed to magnetic resonance cholangiopancreatography (MRCP), and to correlate it with clinical and imaging features.

Materials and methods

Magnetic resonance cholangiopancreatography performed over 26-months on 152 patients with unsuspected/unknown pancreatic disease were reviewed to assess IPCs’ features of presentation. Multivariate analysis was performed to evaluate the correlation of IPCs with clinical information and type of pancreaticobiliary findings at MRCP.

Results

Prevalence of IPCs was 44.7%. Cysts sized 3–24 mm (mean, 6.08 mm), and were ≤4 in number in 83.8% of patients. Based on number, dimensions and relation with the main pancreatic duct, IPCs presented with intraductal-papillary-mucinous neoplasm (IPMN)-like or indeterminate patterns in 31.7% and 13.1% of patients, respectively. At follow-up on 24 patients, no evolution was found, except in one patient with proven IPMN showing increase in cysts number and dimensions (evolution rate of 4.1%). Features correlating with IPCs were age ≥60 years old, and history of autoimmune hepatobiliary disease, showing odds ratios of 5.95 (95% CI 2.77–12.79) and 0.13 (95% CI 0.04–0.44), respectively.

Conclusions

Incidental pancreatic cysts represent a frequent finding at MRCP, correlating positively with increasing age, and negatively with biliary autoimmune disease. Cysts more frequently present with IPMN-like pattern.

Key words

Incidental pancreatic cysts Cystic pancreatic tumors Prevalence Magnetic resonance cholangiopancreatography Pancreas 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Rossano Girometti
    • 1
  • Sergio Intini
    • 2
  • Giovanni Brondani
    • 1
  • Giuseppe Como
    • 1
  • Francesco Londero
    • 2
  • Fabrizio Bresadola
    • 2
  • Chiara Zuiani
    • 1
  • Massimo Bazzocchi
    • 1
  1. 1.Department of Medical and Morphological Research, Institute of Diagnostic RadiologyUniversity of UdineUdineItaly
  2. 2.Department of Surgery and TransplantationUniversity of UdineUdineItaly

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