This study is for adult patients with head and neck cancer who are at risk of recurrence. The purpose of this study is to evaluate whether the use of Indocyanine Green (ICG) dye allows for better identification of tumor tissue during surgical procedures. Participation will include standard of care visits along with administration of ICG dye and imaging during surgery. Participation in this study will last approximately 6 weeks.

This research is being done to better understand how anti-cancer drugs affect cells within a tumor. Injecting very small amounts (microdoses) of pembrolizumab alone or in combination with MK-0482 or MK-4830 above may help the developer of these drugs to understand more about how these drugs work and what changes they make on the tumor. Subjects in this study will have their tumor injected with anti-cancer drugs using a CIVO device. The CIVO device delivers microdoses of multiple drugs or drug combinations directly into the tumor. Some of the procedures in this study include ultrasound assisted placement for tumor injection, a mucrodose injection of anti-cancer drugs into the tumor, and surgery to remove the tumor. Participation in the study will take 5 visits over a period if 56 days. The screening portion will be 28 days and the treatment portion will be 28 days from the time of the injection to the time of follow-up contact by the study team.