Inclusion Criteria:
- Patients 18 years of age or older
- Cross sectional imaging studies demonstrating a pancreatic cyst at least 12 mm in size where fluid sampling can aid in patient's management
- Written informed consent.
- The patient will be undergoing EUS with anticipated FNA extraction as part of standard patient care.
Exclusion Criteria:
- Patients diagnosed with pancreatic cancer.
- Pregnant or lactating females.
- Patients with contraindications to moderate or deep procedural sedation (necessary for the conduct of the endoscopic ultrasound) like major cardiorespiratory illness.
- Patients with contraindications to FNA of a pancreatic cyst like being on blood thinners.