Results
Two-hundred individual neck level specimens were analysed. Seventy-seven
levels were considered cN+ve, of which 83.1% (64/77) were also pN+ve.
One hundred and twenty-three levels were considered cN0 of which 13%
(16/123) were proven as pN+ve, demonstrating occult disease across
various levels. This occult disease was identified in level II in seven
patients, level III in six patients and level IV in three patients, with
no occult disease seen in cN0 level I or V.