A Triumvirate:: Correlating Thyroid Cytopathology, Molecular Testing, and Histopathology

Area of Science:

• Oncology
• Genomics
• Pathology

Background:

• Thyroid nodules are common, with most being benign, necessitating accurate preoperative risk stratification.
• Advances in molecular sequencing reveal key drivers of thyroid cancer, offering new diagnostic avenues.
• Cytologically indeterminate thyroid nodules pose a diagnostic challenge, impacting patient management decisions.

Purpose of the Study:

• To highlight the critical role of molecular testing in refining risk stratification for thyroid nodules.
• To discuss how molecular diagnostics improve surgical triage and extent determination for indeterminate nodules.
• To emphasize the integration of cytomorphologic, molecular, and histologic data for enhanced patient care.

Main Methods:

• Review of current literature on molecular testing in thyroid nodule evaluation.
• Analysis of the impact of DNA and RNA sequencing on understanding thyroid cancer.
• Discussion of molecular platforms and their negative predictive value in clinical practice.

Main Results:

• Molecular testing refines risk stratification for cytologically indeterminate thyroid nodules.
• High-value molecular tests identify nodules suitable for conservative management, avoiding surgery.
• Integration of multi-feature data (cytology, molecular, histology) enhances diagnostic accuracy.

Conclusions:

• Molecular testing is crucial for accurate risk stratification and surgical decision-making in thyroid nodules.
• Conservative management of benign nodules identified by molecular testing is feasible and beneficial.
• A comprehensive approach integrating cytomorphologic, molecular, and histologic features optimizes patient management and reduces errors.