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Gaceta Médica Boliviana

Print version ISSN 1012-2966On-line version ISSN 2227-3662


FLORES SAAVEDRA, Sthephany  and  NOGALES GRAGEDA, Lineth Beatriz. Precision of the PAAF in the Histopathological report of thyroid surgery. Gac Med Bol [online]. 2023, vol.46, n.1, pp.33-38.  Epub June 01, 2023. ISSN 1012-2966.


to evaluate the precision of the different cut-off points of the BAAF Bethesda score in comparison with the histopathological study for the diagnosis of thyroid pathology.


quantitative, observational, cross-sectional, analytical study for the evaluation of diagnostic tests. It included 293 patients with thyroid disease suggestive of cancer, who attended the General Surgery Service of Hospital Obrero No. 2 of the National Health Fund, during the period 2019-2022. Non-randomized convenience sampling was performed that included all available patients.


the correlation between the two variables studied was confirmed, that is, between the Bethesda score and the histopathological study report, with a confidence interval (CI) of 95%.


it is demonstrated that the BAAF has high specificity in the diagnosis of thyroid cancer with Bethesda reports V and VI, on the contrary, minor Bethesda reports II, III, and IV, rule out the diagnosis.

Keywords : thyroid cancer; surgery; Bethesda; T-IRADS; histopathology; goiter.

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