Posterior minimal extrathyroidal extension as an independent risk factor for lateral lymph node metastasis in papillary thyroid carcinoma: a retrospective study based on a nomogram prediction model - Scorecard - MDSpire
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Posterior minimal extrathyroidal extension as an independent risk factor for lateral lymph node metastasis in papillary thyroid carcinoma: a retrospective study based on a nomogram prediction model
Clinical Scorecard: The Role of Posterior Minimal Extrathyroidal Extension as a Distinct Risk Factor for Lateral Lymph Node Metastasis in Papillary Thyroid Carcinoma: Insights from a Retrospective Nomogram Analysis
At a Glance
Category
Detail
Condition
Key Mechanisms
Extrathyroidal extension (ETE) as a risk factor for lateral lymph node metastasis (LLNM) in PTC.
Target Population
Care Setting
Key Highlights
Post-mETE significantly associated with higher incidence of LLNM compared to ant-mETE (p<0.001).
6 independent predictive factors for LLNM identified: maximum tumor diameter >1 cm, bilateral thyroid involvement, multifocality, number of central lymph node metastases ≥2, tumor located at the upper pole, and post-mETE.
Nomogram demonstrated good discrimination performance (AUC = 0.850).
Incidence of occult lateral lymph node metastasis (OLLNM) varies between 10% and 51.7% in cN0 PTC patients.
Guideline-Based Recommendations
Diagnosis
Preoperative ultrasound examination to predict mETE.
Postoperative histopathological examination for definitive diagnosis of mETE.
Management
Consideration of adjuvant radioactive iodine therapy based on LLNM risk.
Monitoring & Follow-up
Regular follow-up for patients with identified LLNM.
Risks
Increased risk of recurrence and distant metastasis associated with LLNM.
Patient & Prescribing Data
Patients with papillary thyroid carcinoma treated at Qilu Hospital of Shandong University from December 2017 to March 2025.
Clinical Best Practices
Utilize nomograms for predicting LLNM in PTC patients.
