Good question!

There is a standard practice at cancer centers which would be more the equivalent of PR review. Often it’s called “tumor board” but names vary (ours is called “case conference”). Depending on the institution and department, all, most (anything but the most straightforward), or some (unusual, advanced, prompted by patient discussion, etc.) cases are brought up for a consensus opinion. Like PR review, the format and formality of this process will differ institutionally, but some version of it is standard as part of the “workflow.”

If the specific department reviews all or most cases as a matter of course, it may not even be mentioned to patients (let alone requiring them to ask for it) unless the consensus opinion alters the original plan. Pathology or radiology consensus interpretations if they occur usually precede the issuance of a final report (so as to avoid giving one interpretation that’s potentially acted on but then amended) and are notated with specific verbiage.

A second opinion generally means transferring records and tissue samples outside the original institution. Think of it more like assigning the same bug report to two teams. There is a role for this, but I wouldn’t think of it as PR review.