What is Hyperthyroidism?

Hyperthyroidism
Anti-CD31 immunohistochemical staining. a) Control group. b) Control group. c) Hyperthyroidism group. d) Hyperthyroidism group. e) Analysis of vessel density of fetal adrenal glands. Vessel density was higher in the hyperthyroidism group than in the control group. Arrows, CD31 positive cells. *P<0.05 compared with the control group. Scale bars: a,c) 50 µm; b,d) 20 µm.Effects of hyperthyroidism on expression of vascular endothelial growth factor (VEGF) and apoptosis in fetal adrenal glands. Karaca T, Hulya Uz Y, Karabacak R, Karaboga I, Demirtas S, Cagatay Cicek A - European journal of histochemistry : EJH (2015). Not Altered. CC.

Hyperthyroidism is a set of disorders that involve excess synthesis and secretion of thyroid hormones by the thyroid gland. Hyperthyroidism may be seen in conditions such as Graves disease, multinodular goiter, and thyroid adenoma.

Examples of hyperthyroidism include: 

  • Thyrotoxicosis
  • Primary hyperthyroidism
  • Secondary hyperthyroidism