Final answer:
To provide updates on high priority cases, one should utilize a Case Digest, which summarizes case details for stakeholders.
Step-by-step explanation:
To send periodic updates on high priority cases for customers and internal stakeholders, one could utilize a Case Digest. This tool typically compiles key information and updates on various cases, allowing for a quick overview and regular dissemination of progress and status updates. It could be especially useful in a business or legal environment where tracking the ongoing developments of cases is critical. While a Case Analytics tool would focus on the data aspect, a Case Digest serves a communication function, a Case Summary may be too brief for ongoing updates, a Post Case Review is usually done after the case is closed, and Special Handling Notes are more for specifics that do not cover the entirety of case updates.