Preoperative TSH and thyroglobulin levels: would it predict thyroid cancer?

Area of Science:

• Endocrinology
• Oncology
• Surgical Pathology

Background:

• Thyroid nodules are common, and differentiating benign from malignant ones preoperatively is crucial.
• Thyroid-stimulating hormone (TSH) and thyroglobulin (Tg) are key thyroid-related biomarkers.

Purpose of the Study:

• To investigate the predictive value of preoperative TSH and Tg levels for thyroid cancer.
• To assess the correlation between TSH and Tg levels and the presence of well-differentiated thyroid cancer (WDTC).

Main Methods:

• Retrospective chart review of patients undergoing thyroid surgery between 2006 and 2012.
• Categorization of patients based on preoperative TSH and Tg levels (elevated TSH/Tg, elevated TSH only, elevated Tg only, neither elevated).
• Analysis of histopathological results to determine the incidence of WDTC in each group.

Main Results:

• Of 267 patients with complete data, 212 were female, with a mean age of 50.
• Patients with elevated TSH and Tg (Group 1) showed a 48% incidence of WDTC (Odds Ratio: 1.79).
• Incidence of WDTC was 45% in the elevated TSH only group, 39.6% in the elevated Tg only group, and 20.8% in the group with neither elevated.

Conclusions:

• Preoperative TSH and Tg levels can serve as valuable indicators in the assessment of thyroid nodules.
• These biomarkers may assist clinicians in preoperative risk stratification for thyroid cancer.