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. Author manuscript; available in PMC: 2021 Oct 7.
Published in final edited form as: Ann Surg. 2020 Sep 1;272(3):496–503. doi: 10.1097/SLA.0000000000004345

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