Safety and Efficacy of an Ablation Catheter for the Treatment of Pancreatic Premalignant Cyctic Lesions.

Inclusion Criteria: * Patients aged 18-85 • Patients who agreed to join study and signed an informed consent letter * Patients with IPMN pancreas cystic tumor with a diameter greater than 30 mm and with secondary branches. * Patients with a tissue component within the cystic lesion * Patients with atypical cells in cytology, regardless of the size of the lesion and regardless of the contents of the cyst * Patients with a lesion of less than 30 mm diameter showing rapid changes in size (15 mm increments followed by 6 months) * Patients with a consistent increase in CEA level within the cyst. * Patients with cystinus cystadenoma of any size with suspicious signs such as thickening of the cyst wall, calcification of the cyst wall, irregularity of the cyst wall, tissue content within the cyst, the presence of atypical cells within the cyst in cytology. * Symptomatic patients (pain defined as related to the lesion) * Asymptomatic patients with a normal cyst greater than 40 mm in diameter. * Patients referred for surgical treatment (after the multidisciplinary committee (gastroenterologists, surgeons and pathologists / cytologists) has approved the diagnosis and indication of therapeutic intervention (as is customary) but not suitable for surgery due to high risk of anesthesia (ASAIV) or severe anatomy due to repeat surgery or patients who do not agree to undergo surgical intervention (these are most patients) * Patients with low anesthetic risk: ASA 1-3. *…