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The predictive value of hematologic parameters in the risk of thyroid malignancy in cases with atypia/follicular lesion of undetermined significance

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Abstract

Background

Atypia/follicular lesion of undetermined significance (AUS/FLUS) is still the most challenging category in the Bethesda System for Reporting Thyroid Cytopathology. Therefore, the aim of the current study was to investigate the value of the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and mean platelet volume (MPV) in predicting malignancy in cases with AUS/FLUS nodules.

Methods

A total of 200 patients with AUS/FLUS nodules who underwent thyroidectomy were included in this study. Preoperative hemogram parameters, ultrasonographic findings, fine-needle aspiration results, and postoperative final histopathological diagnoses of the patients were recorded retrospectively.

Results

Thyroid malignancies were detected in 122 of the patients (61.0%). Patients in the benign group (BG) were older than those in the malignancy group (MG) (52.0 ± 11.3 vs. 45.9 ± 12.3 years, p  < 0.001). The median TSH values of the two groups were comparable. Statistically significant differences were obtained between the two groups in respect of mean WBC of 7.53 ± 1.44 in MG and 6.87 ± 1.35 (103/mm3) in BG, mean neutrophil of 4.65 ± 1.12 in MG and 3.95 ± 0.99 (103/mm3) in BG, and median NLR of 2.18 (0.71–4.57) in MG and 1.75 (0.80–3.42) in BG (p  < 0.001). The median PLR and MPV values of the two groups were similar. When NLR cut-off point was designated as 2.24, the accuracy of NLR in distinguishing malignancy from the benign condition was 0.65 in ROC analysis (area under the curve, 0.665; specificity, 0.808; sensitivity, 0.492).

Conclusion

High NLR values may provide limited help in predicting thyroid malignancy in the AUS/FLUS nodule population, while PLR and MPV are not reliable parameters.

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Funding

The authors did not receive any funding for the current study.

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Authors and Affiliations

Authors

Contributions

HB, MES, and MC designed the study; all the authors contributed to intellectual content, HB, MC, SH, PA, and HD collected data; HB and MC wrote the manuscript; and all the authors reviewed the manuscript.

Corresponding author

Correspondence to Hayri Bostan.

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The authors have no conflicts of interest to declare.

Ethical approval

This study was conducted ethically in accordance with the World Medical Association Declaration of Helsinki. Approval for this study was granted by the local Ethics Committee.

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Written consent was obtained from all participants before the study procedures.

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Bostan, H., Sencar, M.E., Calapkulu, M. et al. The predictive value of hematologic parameters in the risk of thyroid malignancy in cases with atypia/follicular lesion of undetermined significance. Eur Arch Otorhinolaryngol 279, 4077–4084 (2022). https://doi.org/10.1007/s00405-021-07248-9

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  • DOI: https://doi.org/10.1007/s00405-021-07248-9

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