Objective:

The main purpose of the research was to establish the correlation between TIRADS and Bethesda systems with the histopathological diagnosis of thyroid nodules in post-thyroidectomy patients at the Dr. Ricardo Baquero González Hospital. Period 2017-2022.

Methods:

Retrospective, correlational and observational design. The population and sample consisted of 30 patients. The clinical records of all patients with the presence of a thyroid nodule who underwent thyroidectomy were analyzed. To evaluate the homogeneity of the study, sample the following variables were taken into account: clinical data, age, sex, nodule size, anatomopathological study, TIRADS and Bethesda systems.

Results:

The study showed that the average age was 42.15 years, with a predominance of female 93.3% and male 6.7%. In the location of the nodules there was a predominance of multinodular goiter 60%, right lobe 26.67% and left lobe 13.33%. The results showed that 3 patients were classified as Tirads 4, of these, two were TIRADS 4a, whose FNA was Bethesda II and Bethesda III. While the third was Tirads 4b, being categorized as Bethesda IV. All TIRADS <4 were 100% true negative and TIRADS ≥ 4 were true positive at the final biopsy.

Conclusion:

It is concluded that both the TIRADS system and the Bethesda system are effective in ruling out the presence of malignancy in thyroid nodules. The TIRADS system is slightly more sensitive than Bethesda in cases of thyroid nodules ≥ 3 cm.