Chronic Lymphocytic Thyroiditis May Lower Accuracy of AUS/FLUS Cytopathology in Surgical Patients.

The rate of malignancy for AUS/FLUS thyroid nodules is lower with coexisting CLT, and similar to previous studies, the PPV of GEC testing is approximately 50%. Cytologic atypia due to CLT may increase more AUS/FLUS results in thyroid nodules, which may lead to overestimation of malignancy rates in this patient population.