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 - Report - MDSpire
Advertisement
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 Report: The Role of Posterior Minimal Extrathyroidal Extension in PTC
Overview
This study investigates the impact of posterior minimal extrathyroidal extension (post-mETE) on lateral lymph node metastasis (LLNM) in papillary thyroid carcinoma (PTC).
Background
Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer, with a significant incidence of lymph node metastasis that affects patient outcomes. This study examines the distinct effects of post-mETE compared to anterior minimal extrathyroidal extension (ant-mETE) on LLNM.
Data Highlights
Parameter
Value
Patients with LLNM
391 (21.75%)
OR for post-mETE
2.036
AUC of nomogram
0.850
Key Findings
Post-mETE is significantly associated with a higher incidence of LLNM compared to ant-mETE (p<0.001).
Six independent predictive factors for LLNM were 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.
The nomogram developed showed good discrimination performance with an AUC of 0.850.
Occult lateral lymph node metastasis (OLLNM) is a significant cause of postoperative recurrence.
Clinical Implications
The findings suggest that post-mETE should be considered a significant risk factor for LLNM in PTC patients. The predictive nomogram can assist clinicians in identifying patients at high risk for LLNM, potentially guiding decisions regarding adjuvant therapy and follow-up management.
Conclusion
Post-mETE is a critical factor in predicting LLNM in PTC patients. The developed nomogram provides a valuable tool for enhancing perioperative management strategies.
