The above-mentioned categories are defined as follows: TIR1 - inadequate or cystic-hemorrhagic sample-IN; TIR2 - non-neoplastic lesion (BL); TIR3 - follicular/indeterminate neoplasm including atypical cells of indeterminate significance (FN/AUS); TIR4 - suspicious for malignancy (SM); and TIR5 - positive for malignancy (PM).
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The role of fine-needle aspiration in the thyroid nodules of elderly patients.
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