Isr Med Assoc J
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Due to the high variability in malignancy rate among cytologically indeterminate thyroid nodules (Bethesda categories III-V), the American Thyroid Association recommends that each center define its own categorical cancer risk. ⋯ We found higher than expected rates of malignancy in indeterminate cytology. This finding reinforces the guidelines of the American Thyroid Association to establish local malignancy rates for thyroid nodules with indetermined cytology.