Table 2 Nodal Basins Dissected
From: Utility of SUVmax on 18 F-FDG PET in detecting cervical nodal metastases
Nodal basin | Dissection frequency | No. of positive basins | % of tumours ipsilateral to the positive node | % of tumours contralateral to the positive node | % of tumours midline to the positive node | % of positive nodes with unknown primaries |
|---|---|---|---|---|---|---|
Level I | 70 | 18 | 10/18 (55.6 %) | 1/18 (5.6 %) | 3/18 (16.7 %) | 4/18 (22.2 %) |
Level II | 95 | 33 | 18/33 (54.5 %) | 3/33 (9.1 %) | 5/33 (15.1 %) | 7/33 (21.2 %) |
Level III | 95 | 21 | 12/21 (57.1 %) | 1/21 (4.8 %) | 6/21 (28.6 %) | 2/21 (9.5 %) |
Level IV | 77 | 10 | 6/10 (60.0 %) | 0/10 (0 %) | 3/10 (30.0 %) | 1/10 (10.0 %) |
Level V | 27 | 4 | 2/4 (50.0 %) | 0/4 (0 %) | 2/4 (50.0 %) | 0/4 (0 %) |
Total | 364 | 86 | 48/86 (55.8 %) | 5/86 (5.8 %) | 19/86 (22.1 %) | 14/86 (16.3 %) |