Pancreatic intraepithelial neoplasia (PanIN) is considered a pre-malignant lesion difficult to identify by imaging methods. EUSFNAis an effective technique to obtain material for histopathological study of pancreatic cystic tumors, but it is not free ofadverse events. We report a case of a 56 years old patient, with chronic abdominal pain (early 1994). MRI showed pancreaticcystic images. The etiologic diagnosis was doubtful and EUS-FNA was performed. Immediately after a FNA, patient had anepisode of acute pancreatitis, requiring hospitalization. During one year after FNA he had five episodes of AP. A new EUSsuspected of PanIN, which was confirmed by surgery. After surgery the patient is well and has no more episodes of AP. Althoughthe risk of AP, EUS-FNA should be performed to determine the best treatment for these patients with chronic abdominal painwho have cystic changes of pancreatic...

Background: Endoscopic ultrasound training has a learning curve greater than the other endoscopic therapeutic techniques.One of the preclinical teaching methods is the use of ex vivo porcine models. Aim: To describe five ex vivo porcine modelsfor training in therapeutic echoendoscopic procedures. Materials and methods: Using porcine digestive tract containingesophagus, stomach, duodenum, spleen, liver and gallbladder, five models for therapeutic echoendoscopy training weredescribed. With other segments of the porcine pieces (such as the bladder, spleen segment and omentum segment) andwith easily accessible materials (such as grape and ultrasound gel), lesions were simulated to be treated. These models wereapplied in the Hands on course at the IRCAD (Institut de recherche contre les cancers de l'appareil digestif) Barretos of2017. Endoscopic equipment and instruments are the same as those...