Association between primary hyperparathyroidism and previous irradiation

Abstract
The association between primary hyperparathyroidism and previous irradiation was investigated in 2 study groups. Among 36 patients with hyperparathyroidism, 4 (11%) knew of having received radiation therapy. In the 2nd group of 323 patients with a history of radiation exposure and nodular thyroid disease, 4 (1%), thus far, were found to have hyperparathyroidism. The relationship between previous radiation therapy to the head and neck areas and later development of primary hyperparathyroidism was discussed.