If your MDT thinks it is possible to cure your bile duct cancer, surgery will be needed to remove any cancerous tissue. Depending on the extent of the cancer, it may be necessary to remove: 1  the part of your bile duct that contains cancerous cells. 2  your gallbladder.
Data extraction. Data extraction is the act or process of retrieving data out of (usually unstructured or poorly structured) data sources for further data processing or data storage (data migration).
Techopedia explains Data Retrieval. Data retrieval typically requires writing and executing data retrieval or extraction commands or queries on a database. Based on the query provided, the database looks for and retrieves the data requested. Applications and software generally use various queries to retrieve data in different formats. In addition to simple or smaller data, data retrieval can also include retrieving large amounts of data, usually in the form of reports.