The paper is aimed at evaluating the frequency of incidence and the thyroiditis type in patients operated on for goiter. In the years 1989-2000, 5149 patients were operated on because of different thyroid disorders. The clinical data of 66 patients with thyroiditis, diagnosed in a post-operating histopathological examination, were subject to a retrospective analysis. There were 64 women and 2 men, aged from 22 to 70, on an average 50.1 years old. There were determined the preoperative diagnosis, the thyroid function--basing upon the levels of TSH and thyroid hormones, the type of operation effected as well as post operative complications. Then, there was also measured the weight of the resected lobes. The prevalent indication for the surgery was non-toxic goiter; instead, toxic goiter was such an indication only in a few cases. In most patients, the thyroid function revealed euthyreosis. The following complications were observed: transient hypocalcemia [two patients], transient paralysis of recurrent laryngeal nerve on one side [one], and wound suppuration [one]. The following types of thyroiditis were found in histopatological examination: Hashimoto (59 patients), Riedl (3 patients), de Quervain (2 patients) and non-specific thyroiditis (2 patients).
Conclusions: 1. Thyroiditis is a rare case in patients operated on for goiter. 2. The most frequent pathological finding is Hasimoto disease.