Retrospective review of lymphatic drainage patterns in cT1-2OPSCC and contralateral cN0 neck with a nonoperative, awake injection of 99 m-Tc sulfur colloid and SPECT-CT.
Patients newly diagnosed as having cT1-2 N1-2b pathologically confirmed HPV-negative OPSCC in 2010 to 2012 were identified using the National Cancer Data Base, which includes more than 70% of patients newly diagnosed as having cancer in the United States.