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Zachary Drew
Public Documents
1
Inter-observer agreement in assessment of clinically overt extra nodal extension (cN3...
Emily Chiang
and 4 more
November 13, 2020
Key Points • Clinical N3b staging is defined as unequivocal and unambiguous signs of extra nodal extension (ENE), such as skin involvement, muscle invasion or nerve dysfunction, supported by radiological evidence. • There is a paucity of studies determining interobserver reliability of clinical detection of overt ENE. • A prospective comparative cohort study assessing 12 Head and Neck surgeons’ inter-observer agreement in detecting the components of overt ENE. • We reveal high surgeon agreement in the ability to detect lymph nodes, the presence of skin involvement and in surrounding nerve involvement. • Variability of surgeon assessment was seen in the assessment of overt muscular involvement.