[Coincidence of hyperparathyroidism and thyroid gland cancer].

127 patients, operated for hyperparathyroidism in a 4-years period (1986-1989) were analyzed retrospectively, regarding concurrent thyroid disease. In 42 patients (33%) thyroid resection was performed simultaneously. Of these, in five cases (4%), thyroid malignancy was discovered: there was one follicular carcinoma, one multilocular papillary tumor and three well differentiated small papillary carcinomas (less than 1.5 cm diameter). This prevalence of thyroid tumors is comparable to the results of different authors (2.5-8.5% in the literature). We conclude that preoperative examination should include the thyroid gland before parathyreotoid exploration.