Here is a fairly good overview of the main points of case management and how it differs from (traditional) business process management
Also see a few comments by Martin Baronitz.
Mastering The Unpredictable
How Adaptive Case Management Will Revolutionize the Way That Knowledge Workers Get Things Done
[...] Case Management Explained by Jim Sinur - This video of Jim Sinur outlines the main points of case management and how it differs from (traditional) BPM. [...]