Clinical Research Directory

Inclusion Criteria: * (Before the trial, subjects must meet all of the requirements listed below in order to be enrolled) 1. 18-80 years old (inclusive), male and female; 2. patients with pancreatic solid mass \> 1cm detected by CT/MRI/PET-CT or EUS and requiring EUS-FNB diagnosis. 3. written informed consent was obtained. Exclusion Criteria: * (Before the trial, participants could not be enrolled if they met any of the following requirements) 1. contraindications to endoscopy, such as severe cardiovascular and cerebrovascular diseases; 2. bleeding coagulation dysfunction (prothrombin international normalized ratio ≥1.5, platelet count ≤ 50 000) or use of antiplatelet drugs; 3. confirmed pregnancy or possible pregnancy; 4. pathological diagnosis has been obtained by other methods; 5. refuse to participate in the study, are participating in another observational clinical trial, or have participated in another clinical trial within 60 days. 6. other situations where EUS-FNB could not be performed.