highly significantP < 0.001
For lesions length <5 cm, the lymph node metastasis rate was 14.7% (5/34), compared to 85.7% (12/14) for lesions ≥ 5 cm, with a highly significant difference ( P < 0.001).
For lesions length <5 cm, the lymph node metastasis rate was 14.7% (5/34), compared to 85.7% (12/14) for lesions ≥ 5 cm, with a highly significant difference ( P < 0.001).