41. He said a conventional vet might treat a cat's hyperthyroidism with surgery or drugs. 42. In fact, her hyperthyroidism , they said, was a product of Graves'disease. 43. When universal salt iodization was introduced, some cases of hyperthyroidism occurred in Zaire and Zimbabwe. 44. In pregnancy, prolonged high concentrations of hCG can produce a transient condition termed gestational hyperthyroidism . 45. No evidence of metabolic disorders like hyperparathyroidism or hyperthyroidism was found in the specimens, either. 46. Chorea can be secondary to hyperthyroidism . 47. It can lead to hyperthyroidism and consequently high blood levels of thyroid hormones ( hyperthyroxinemia ). 48. Being underweight is associated with certain medical conditions, including hyperthyroidism , cancer, or tuberculosis. 49. Hyperthyroidism can also be a cause.50. Clinical neonatal hyperthyroidism occurs in about 1 % of infants born to mothers with Graves disease.