Primary Aim:
To compare the number of passes required for obtaining adequate cell block material during EUS-guided FNA of solid pancreatic mass lesions.
Primary Research Hypothesis:
More specimen is required to obtain definitive diagnosis on cell block. This translates to less need for repeat procedures (due to nondiagnostic index procedure due to inadequate FNA passes), prompt treatment to patients and better use of health care resources. Therefore, we will be comparing 2 versus 4 FNA passes to determine which number of FNA pases will yield an adequate diagnostic cell block.
Secondary Aims:
To compare the rate of complications when performing 2 versus 4 EUS-FNA passes of solid pancreatic mass lesions.
Secondary Research Hypothesis:
EUS-guided FNA is a safe procedure with a complication rate of \< 1%. By performing more (four) NA passes one is likely to yield a better quality cell block while at the same time without compromising patient safety.
