Yalcin, M. M.; Altinova, A. E.; Ozkan, C.; Toruner, F.; Akturk, M.; Akdemir, O.; Emiroglu, T.; Gokce, D.; Poyraz, A.; Taneri, F.; Yetkin, I.
April 2016
Acta Endocrinologica (1841-0987);Apr-Jun2016, Vol. 12 Issue 2, p185
Academic Journal
Context. Thyroid incidentaloma is a common disorder in endocrinology practice. Current literature regarding the risk of thyroid cancer in incidentalomas found in patients with non-thyroid cancer is limited. Objective. The aim of the present study was to investigate the frequency of thyroid malignancy in thyroid incidentalomas detected in patients with non-thyroid cancer. Design. Case control study. Subjects and Methods. The database of 287 thyroid nodules from 161 patients with a history of nonthyroid cancer followed between 2008 and 2014 were retrospectively evaluated. Results. From 287 thyroid nodules, 69.7% had a benign final cytology. Thyroid cancer detected in one nodule while follicular neoplasia detected in 4 nodules, atypia of unknown significance (AUS) detected in 10 nodules, Hurthle cell neoplasia detected in 5 nodules and suspicious for malignancy detected in 6 nodules according to fine needle aspiration biopsy results. Metastasis of the non-thyroid cancer to the thyroid gland was detected in 4 nodules. Twenty seven nodules from 15 patients were removed with surgery. There were 3 malignant nodules found after surgery (1 papillary, 1 follicular and 1 medullary cancer). In addition to these three thyroid cancers, two patients with benign nodules had co-incidental thyroid cancer detected after surgery. Finally, 11.1% of thyroid nodules which underwent thyroid surgery had malignant histopathology except for co-incidental and metastatic cancers. Conclusions. The frequency of thyroid malignancy seems not to be substantially increased in incidental thyroid nodules detected in patients with non-thyroid cancer when these patients were evaluated in nodule-based approach.


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