Cases, including sent out cases, for which any of the relevant slides used for the original sign-out diagnosis is no longer available at the site.

The selected slide or slides do not match any subtype of the organ for which the case was selected.

Relevant Clinical Information that was available to the sign-out pathologist in the pathology request form cannot be obtained.

Selected slides contain indelible markings.

Selected slides with damaged tissue.

More than one case was selected for a patient (only one case may be enrolled per patient).

Case consists of frozen section(s) only.

Case consists of gross specimens only.

Pivotal Study for Validation of Philips Dx (PDx)