Tissue type A is included for completeness as we intend to use the same database system and banking facility to track and locate samples that were alternatively prepared (primarily frozen) with the intent that this sampling may be indicated for future diagnostic tests (primarily molecular tests requiring frozen or alternatively prepared tissue). Examples of this would include the future development of a molecular marker for a specific tumor that is only possible on frozen tissue that was not available at the time of surgery, that has a diagnostic or treatment utility, and is initiated by the treating clinician, the primary pathologist, or the patient after the initial diagnostic evaluation; or a diagnostic work-up on a sample of frozen liver for an occult metabolic abnormality from a child who dies unrepentantly and whose autopsy is unremarkable by routine evaluations. If future research projects wish to use these samples at some time in the future, the HRRC will determine if they fulfill the criteria for "archival" samples and whether they need to contact the patient for consent, whether they qualify for waiver of consent, and whether they will be dispensed as coded or anonymous samples. We expect that under HIPAA regulations, only de-identified tissue samples would be released from the bank in the future from the Type A tissue sample category.