A Critically Appraised Topic (CAT) is short summary of a body of evidence on a topic. While more than one study is included in the creation of a CAT, a critically appraised topic is much less rigorous than a formal systematic review. UptoDate is an example of a resource that provides Critically Appraised topic.
A synopsis of an individual article is known as Critically Appraised Individual Topic (CAIT) or a Critically Appraised Paper (CAP).
Examples of where you can locate critically appraised papers include: the Evidence Based Journal series, the New England Journal of Medicine's Journal Watch service, OrthoEvidence, and the ACP Journal Club.