Multicenter study to determinate the feasibility of intra-cystic fluid DNA molecular analysis in patients with suspected cystic tumours of pancreas in whom EUS FNA is clinically indicated.~Morphological criteria obtained by MRI and computerised tomography (tumor characterization (size, metastases presence, dilatation of bile ducts), etiologic diagnosis, serious symptoms), biological exams (biomarkers), cytological analysis will lead to a diagnosis and a treatment.~The goal of this study is to compare this standard diagnostic modalities to diagnosis obtained by intra-cystic fluid DNA molecular analysis.~Is the DNA molecular analysis improve the diagnosis accuracy.
The main objective of the study is to compare the diagnostic accuracy of intra-cystic fluid DNA molecular analysis to standard diagnostics.~The secondary objective of the study is to evaluate the feasibility of intra-cystic fluid DNA molecular analysis.