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Commercial molecular testing, such as the gene expression classifier (GEC), is now being used in the work up of cytologically indeterminate thyroid nodules. While this test may be helpful in ruling out malignancy in a thyroid nodule, its effect on surgical decision making has yet to be fully defined.

We aimed to determine the effect and outcome of GEC test results on the decision-making process for patients with thyroid nodules presenting for surgical consultation.

A surgical management algorithm was developed that incorporated individual Bethesda System for Reporting Thyroid Cytopathology classifications, in addition to clinical, laboratory, and radiological findings. We then retrospectively applied this algorithm to 273 consecutive patients with thyroid nodules and GEC test results who had presented for surgical consultation between February 1, 2012, and …