Task: Text Categorization
Input (English): Frey's procedure is used to treat inflammation of this organ, and the Whipple Procedure involves the removal of its head. Endoscopic ultrasonography is often used to detect the tumors on this organ that are caused by Zollinger-Ellison syndrome. The head of this yellowish organ contains the duct of Wirsung, which is connected to the duodenum, and its tail stretches behind the stomach. For 10 points, name this organ that is home to the islets of Langerhans and produces a namesake juice.
Output (English): Science