Endocrine Abstracts

JOINT1914

Objective: The aim of our study was to determine the prevalence and caracteristics of thyroid carcinoma and Hashimoto’s thyroiditis (HT) coexistence in histopathologic material of thyroidectomized patients.

Matherials and Methods: In a retrospective study, the clinicohistopathologic data of patients who underwent a thyroidectomy and had HT in the histopathological specimen, from the 1st of January 2018 to the 31st july 2023 were analyzed.

Results: Our serie includes 73 patients who have HT and are all female. 16 patients have a thyroid dysfunction. The only histological type present is papillary thyroid carcinoma(PTC). Thyroid carcinoma(TC) was detected in four cases and microcarcinoma(TMC) in three cases. The mean tumor diameter was 17 mm in the TC group and 6.5 mm in the TMC group. Oncocytic variant of PTC was detected in two cases in the TC group while vesicular variant of PTC was detected in the other two cases. Oncocytic variant of PTC was detected in two cases in the MTC group while tall cell variant was detected in one case. Bilaterality was detected in one case and multifocality was detected in two cases of TC group. There is no bilaterality or multifocality detected in the MTC group. Capsular effraction and vascular embol was detected in one case of TC group and no case of MTC. One patient underwent a recurrent lymph node dissection and no metastasis was detected.

Conclusion: We suggest that prevalence of PTC in patients having HT is low and have less agressive features