Goiter
enlargement of thyroid gland from low or excessive thyroid hormone production or iodine deficiency
Patho of Goiter
toxic (hypo / hyperthyroidism)
low iodine intake or goitrogens –> reduced T3/T4 synthesis –> increased TSH –> gland growth
Hypothyroidism
Hashimoto’s thyroiditis –> insufficient production of T3 + T4 –> slowing of metabolic processes (high TSH, low T4)
Patho of Hypothyroidism
(hasimoto’s) lymphocytic infiltration –> anti-thyroperoxidase (anti-TPO) + antithyroglobulin antibodies
Symptoms of Hypothyroidism
fatigue
weight gain
cold intolerance
dry skin, hair loss, brittle nails
puffy face, hoarse voice
bradycardia
constipation
menustral irregularties, infertility
myxedema coma
cretinism (growth + intellectual delays)
Patho of Hyperthyroidism
high T3/T4 low TSH –> increased metabolism
Cause of Hyperthyroidism
grave’s disease
Risks of Hyperthyroidism
women
40-60
Symptoms of Hyperthyroidism
weight loss
heat intolerance
tremor
palpitations
exopthalmos
goiter
Parathyroid Gland
endocrine glands behind the thyroid, secrete PTH (regulate Ca+ + phosphate balance form bones, kidneys + GI tract)
Hypoparathyroidism
insufficient PTH secretion from thyroid or neck surgery
Patho of Hypoparathyroidism
low PTH –> decreased Ca+, increased phosphate
Symptoms of Hypoparathyroidism
muscles cramps
tetany
parethesia
trousseau’s sign (carpal spasm)
chvostek’s sign (facial twitch)
Hyperparathyroidism
high PTH –> high Ca+ –> bone breakdown
Causes of Hyperparathyroidism
parathyroid adenoma
Risks of Hyperparathyroidism
middle aged women
50-60
Symptoms of Hyperparathyroidism
bone pain
kidney stones
constipation
depression
(bones, stones, groans, moans)