TABLE 2.
Pathology
Variable | Total Thyroid (N=30) | Total Thyroid + Central Neck Dissection (CND) (N=30)* | p-value |
---|---|---|---|
Tumor Size (cm) | 2.45± 0.26 | 1.91±0.21 | 0.12 |
Multifocal | 13 (43.3%) | 14 (48.3%) | 0.80 |
Extra-thyroidal Extension# (ETE) | 4 (13.3%) | 3 (10.3%) | 1.00 |
Vascular Invasion | 1 (3.3%) | 5 (17.2%) | 0.10 |
High Risk Pathology | 1 (3.3%) | 1 (3.4%) | 1.00 |
Follicular Variant of PTC | 6 (20.0%) | 4 (13.7%) | 0.73 |
Positive Margins | 2 (6.7%) | 2 (6.9%) | 1.00 |
Tumor Staging | |||
T1 Tumor | 13 (43.3%) | 18 (62.1%) | 0.20 |
T2 Tumor | 10 (33.3%) | 7 (24.1%) | 0.57 |
T3 Tumor (>4 cm or ETE) | 7 (23.3%) | 4 (13.7%) | 0.51 |
# of lymph nodes (LN) removed | 0.77±0.24 | 7.10±0.92 | <0.001 |
Positive Nodes | 10.0% | 27.6% | 0.10 |
Largest Positive node (cm) | 0.30±0.1 | 0.41±0.05 | 0.33 |
# of Positive LN | 0.40± 0.24 | 1.66±0.67 | 0.09 |
ETE was invasion into the strap muscles, there was no gross ETE into surrounding organs identified
1 additional patient was initially randomized to CND but found to not have cancer on final pathology and was excluded from all analyses