<prompt> Which is the most frequently involved aery in acute pancreatitis leading to pseudoaneurysm?Splenic aerySuperior pancreatico duodenal aeryInferior pancreaticoduodenal aeryGastroduodenal aery  <response>: Pseudoaneurysms develop in up to 10 of patients with acute pancreatitis. The splenic aery is most frequently involved. Reference: Harrisons Principles of Internal Medicine, 18th Edition, Page 2642 