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Serous Cystadenomas of the Pancreas: Long-term Follow-up Measurement of Growth Rate |
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| Authors: | Alexandre Menard MD George Tomlinson PhD Sean Cleary MD Alice Wei MD Steven Gallinger MD Masoom A. Haider MD |
| Affiliation: | aDepartment of Medical Imaging, St Michael's Hospital, Toronto Ontario, Canada;bDivision of Clinical Decision-Making and Health Care, Toronto General Hospital, Toronto, Ontario, Canada;cHepatobiliary and Pancreatic Surgical Oncology University Health Network, University of Toronto Division of General Surgery, Toronto General Hospital, Toronto, Ontario, Canada;dJoint Department of Medical Imaging, University Health Network and Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada |
| Abstract: | PurposeTo measure the growth rate of microcystic subtype serous adenomas of the pancreas diagnosed by imaging.MethodsFor this retrospective study, 241 imaging studies were reviewed from 1998 to 2005. Thirty-one patients met our strict diagnostic imaging inclusion criteria and had at least 18 months of imaging follow-up. Patient demographics and lesion imaging characteristics were tested as predictors of growth.ResultsGrowth was measured over a mean period of 42 months. There was a significant (P = .0004) linear growth of tumour for the population. There was significant clustering (P = .001) of the population into 2 growth rates: 0.50 mm/y (n = 23) and 5.5 mm/y (n = 8). The diameter of the lesion at presentation was significantly correlated with growth (r = 0.45; P = .01).ConclusionThe microcystic subtype of serous cystadenomas of the pancreas diagnosed with imaging criteria demonstrates 2 distinct and slow growth rates. The size of the lesion at presentation is correlated with growth rate. |
| Keywords: | Serous adenomas Growth rate Pancreas |
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