Design
Retrospective study of 61 patients with p16+ve OPSCC whom had neck
dissection and prior or simultaneous trans-oral surgery. Histopathology
reports of neck dissection specimens were compared to preoperative
clinical and radiological reports to determine the distribution of
clinically known and occult nodal disease at each neck level and its
concordance with preoperative assessment. Positive and negative
predictive values for pathological nodal disease (pN+ve or pN0) were
attributed to clinically assigned node-positive (cN+ve) or node-negative
(cN0) status at each neck level.