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Published on: April 21, 2023
The utility of preoperative serum thyroid-stimulating hormone level for predicting malignant nodular thyroid disease
Judy Jin1, Rhoderick Machekano, Christopher R McHenry
1Department of Surgery, MetroHealth Medical Center, 2500 Metrohealth Drive, Cleveland, OH 44109-1998, USA.
Introduction:
The aim of this study was to assess whether serum thyroid-stimulating hormone (TSH) levels are of value in predicting malignancy in patients with nodular thyroid disease (NTD).
Methods:
Patients with NTD and a preoperative TSH level who underwent thyroidectomy between 1990 and 2008 were identified from a prospective database. Age, sex, TSH concentration, nodule size, and pathology were evaluated. Logistic regression analysis was used to determine which factors were predictive of malignancy.
Results:
Six hundred fifty-three patients were analyzed. The overall rate of malignancy was 20%; the rate was highest in patients<30 years (32%). The mean TSH level was higher in the malignant group (5.5 microIU/mL vs 1.4 microIU/mL, P<.0001). The rate of malignancy was 65% in patients with TSH levels>5.5 microIU/mL. Logistic regression analysis revealed that TSH level was the only significant risk factor for malignancy.
Conclusion:
The serum TSH level may be useful in predicting the probability of cancer and optimizing the extent of thyroidectomy in patients with NTD.
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