Advances in Medicine / 2019 / Article / Tab 1

Research Article

A Monocentric Retrospective Study about the Correlation between Histology and Cytology of Thyroid Indeterminate Nodules Classified as TIR 3A and TIR 3B, according to 2014 Italian Consensus for Classification and Reporting of Thyroid Cytology

Table 1

Diagnostic categories, expected risk of malignancy, and suggested management in 2014 ICCRTC classification [14].

Diagnostic categoryExpected rate of malignancy (%)Recommendation

TIR1Not diagnosticUndefinedFNA repetition after at least one month
TIR1CNot diagnostic, cysticLow, based on clinical featuresFocused on clinical features and/or FNA repetition
TIR2Not malignant/benign<3Follow-up
TIR3AIndeterminate nodule with low risk of malignancy<10Follow-up/FNA repetition
TIR3BIndeterminate nodule with high risk of malignancy15–30Surgery
TIR4Suspicious of malignancy60–80Surgery/intraoperatory histology eventually
TIR5Malignant95Surgery; further diagnostic exams if necessary

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