Please select the eligibility criteria that correspond to the clinical trial below.
Title: Diagnosis of Pancreatic Cysts: Endoscopic Ultrasound With Fine Needle Aspiration (EUS/FNA), Direct Visualization, and Confocal Laser-induced Endomicroscopy-A Pilot Study
Brief Summary: The purpose of this study is to assess the yield of combination modalities in the diagnosis of pancreatic cysts using EUS/FNA, Fiber optics (direct visualization probe), and prototype needle based confocal laser-induced endomicroscopy miniprobe (nCLE).


Options:
A: Inclusion Criteria:

* Patients scheduled for an EUS-FNA procedure of a pancreatic cyst,
* Aged above 18 years
* Granted written informed consent for the study can be included in the study.

Exclusion Criteria:

* Contraindication for undergoing EUS/FNA procedure (such as unwilling or medically unstable patients, patients with severe coagulopathy, patients with poor visualization on EUS for various reasons, etc)
* Pregnant or breastfeeding
* Allergy to fluorescein
* Renal insufficiency
B: Inclusion Criteria:

1. Age greater than 18 years
2. Presence of peri pancreatic mass, mediastinal or intra-abdominal lymphadenopathy confirmed by investigational modality - CT scan, magnetic resonance imaging, EUS.
3. Capable of providing informed consent

Exclusion Criteria:

1. Severe coagulopathy (INR \> 1.5) or thrombocytopenia (platelet count \< 50,000)
2. History of acute pancreatitis in the preceding 4 weeks
3. Pregnancy
4. Inability to provide informed consent
C: Inclusion criteria

* Patients diagnosed with solid pancreatic tumor masses, with cytological / histological confirmation
* Age 18 to 80 years old, men or women
* Signed informed consent for EUS with elastography and FNA biopsy

Exclusion criteria

* Prior surgical treatment with curative intent or chemo-radiotherapy
* Patients diagnosed with mucin producing tumors, pancreatic cystic tumors, etc.
D: Inclusion Criteria:

* Male or female \> 18 years of age.
* Patient indicated for a first EUS-FNA for a pancreatic cyst, lymph node or pancreatic mass, or
* Patients who had previous non-diagnostic tissue sampling taken during a previous EUS-FNA for pancreatic cyst, lymph nodes, pancreatic mass, more than three months ago.
* Patient with known pancreatic cyst or mass detected at cross-sectional imaging or suspicious lymph nodes reachable via EUSFNA
* Willing and able to comply with study procedures and provide written informed consent to participate in the study.

Add for lymph nodes:

- any lymph node reachable with EUS-FNA

Add for pancreatic mass:

* any size
* any location in the pancreas

Exclusion Criteria:

* Subjects for whom EUS-FNA procedures are contraindicated
* Known allergy to fluorescein dye
* If female, pregnant based on a positive hCG serum or an in vitro diagnostic test result or breast-feeding

Add for cysts:

* Subject with multiple cysts
* size \< 20mm in diameter
* previous EUS-FNA procedure performed less than 3 months ago - Patients suffering chronic calcifying pancreatitis

Add for lymph nodes:

* size \< 5mm in diameter
* If patients present several suspicious lymph nodes, only one of them will be imaged during the nCLE procedure

Add for pancreatic mass:

- If patient present several pancreatic masses, only one of them will be imaged during the nCLE procedure

Answer: A