MKI67 and neoplasm: It is stratified by primary location, baseline tumor, node, metastases (TNM) stage, associated risk of recurrence, histological features of the tumor (e.g., Ki67), Human Papilloma Virus (HPV) status, final histological result with assessment of risk factors (R0, R1, R2, and tumor cell emboli in the microscopic vessels, perineurium infiltration, and extracapsular spread), and concepts and methods of treatment (surgical/radiotherapy/radiochemotherapy (RT/RTCT), definitive, palliative, and supportive).