Cervical lymph node metastasis is a known
prognostic factor in PTC. However, the greatest controversy hampering the routine application of prophylactic central neck dissection is the increased risk of
complications in thyroidectomy. In this study, we sought to investigate MRI features for predicting cervical
lymph node metastasis in papillary thyroid carcinoma. This study revealed a prediction
model built from thyroid
contour protrusion sign and poorly tumor margin in contrast enhanced imaging constituted an effective tool for
predicting PTC with cervical LNM, which was not reported in previous studies. Meanwhile, age and tumor size could be helpful to distinguish between node-negative and node-positive
papillary thyroid cancers.