Table 2. Modified category nomenclature used for analytical purpose of the study.
TBSRTC 2023: The Bethesda System for Reporting Thyroid Cytopathology 2023; JRSTAC 2019: Japanese Reporting System for Thyroid Aspiration Cytology 2019; ICCRTC 2016: Italian Consensus for the Classification and Reporting of Thyroid Cytology 2016; UK RCPath 2016: The UK Royal College of Pathologists System for Reporting Thyroid Cytopathology 2016; RCPA/ASC 2019: The Royal College of Pathologists of Australasia and Australian Society of Cytology 2019
| TBSRTC 2023 [10] | JRSTAC 2019 [6] | ICCRTC 2016 [7] | UK RCPath 2016 [8] | RCPA/ASC 2019 [9] | |||||
| Category | Code | Category | Code | Category | Code | Category | Code | Category | Code |
| I | B1 | I, II | J1 | TIR1, TIR1c | I1 | I | A1 | Thy1, Thy1c | R1 |
| II | B2 | III | J2 | TIR2 | I2 | II | A2 | Thy2, Thy2c | R2 |
| III | B3 | IV | J3 | TIR3A | I3 | III | A3 | Thy3a | R3 |
| IV | B4 | V | J4 | TIR3B | I4 | IV | A4 | Thy3f | R4 |
| V | B5 | VI | J5 | TIR4 | I5 | V | A5 | Thy4 | R5 |
| VI | B6 | VII | J6 | TIR5 | I6 | VI | A6 | Thy5 | R6 |