Fig. 2.

Absolute distribution of final histological diagnoses. Patient age is indicated by bar pattern. The most prevalent primary histological diagnoses were multinodular goiter, papillary thyroid carcinoma and Graves’ disease. Most common associations of primary and secondary histological diagnoses were nodular goiter/Hashimoto’s thyroiditis (12 cases), papillary thyroid carcinoma/Hashimoto’s thyroiditis (4 cases), papillary thyroid carcinoma/Graves’ disease (3 cases) and medullary thyroid carcinoma/C cell hyperplasia (3 cases). * Primary diagnosis: result from completion thyroidectomy