- Eligible cases include those in which primary diagnostic studies are complete, and for which there is excess tissue for analysis in the form of unstained slides or paraffin blocks archived in the NCI CCR Laboratory of Pathology as well as imaging stored in the NIH medical records system. Cases will be drawn from specimens previously submitted to the NCI CCR Laboratory of Pathology in consultation or from surplus materials from existing protocols, upon completion of all superseding diagnostic tests and medical/scientific studies in cases where the patient is deceased or has previously consented to future use of samples on their original protocol consent. Inclusion of additional NIH cases will be limited to those instances in which the current informed consent encompasses the proposed analyses.