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Hyperthyroidism is one of the most common endocrine conditions affecting older domesticated housecats. In the United States, up to 10% of cats over ten years old have hyperthyroidism. [63] The disease has become significantly more common since the first reports of feline hyperthyroidism in the 1970s.
Graves' disease data has shown that the lifetime risk for women is around 3% and 0.5% for men. [39] It occurs about 7.5 times more often in women than in men [1] and often starts between the ages of 40 and 60. [6] It is the most common cause of hyperthyroidism in the United States (about 50 to 80% of cases). [1] [4]
Thyroid disease is a medical condition that affects the structure and/or function of the thyroid gland.The thyroid gland is located at the front of the neck and produces thyroid hormones [1] that travel through the blood to help regulate many other organs, meaning that it is an endocrine organ.
Toxic multinodular goiter (TMNG), also known as multinodular toxic goiter (MNTG), is an active multinodular goiter associated with hyperthyroidism.. It is a common cause of hyperthyroidism [2] [3] in which there is excess production of thyroid hormones from functionally autonomous thyroid nodules, which do not require stimulation from thyroid stimulating hormone (TSH).
Myxedema is known to occur in various forms of hypothyroidism, as well as hyperthyroidism, including Graves disease. One of the hallmarks of Grave's disease is pretibial myxedema, myxedema of the lower limb. [2] Myxedema is more common in women than in men. [3] Myxedema can occur in: Hyperthyroidism, associated with pretibial myxedema and ...
Thyrotoxic myopathy (TM) is a neuromuscular disorder that develops due to the overproduction of the thyroid hormone thyroxine.Also known as hyperthyroid myopathy, TM is one of many myopathies that lead to muscle weakness and muscle tissue breakdown.
This latter occurs in 60 to 80 percent of patients with untreated hyperthyroidism. [10] Muscle weakness is rarely the chief complaint. The likelihood and degree of muscle weakness is correlated with the duration and severity of the hyperthyroid state, and becomes more likely after the age of 40.
The hyperthyroidism usually develops over 2 to 12 weeks following iodine administration. [ 2 ] In some ways the Jod-Basedow phenomenon is the opposite of two physiological compensation mechanisms, the Plummer effect and the Wolff–Chaikoff effect , which in normal persons and in persons with thyroid disease, suppress the thyroid hormone after ...