Diseases Flashcards
(82 cards)
Hashimoto’s thyroiditis
Autoimmune disease - antibodies to thyroglobulin (synthesis pathway) or thyroid peroxidase (enzyme in hormone synthesis pathway)
Myxoedema
Hyperplasia and hypertrophy of thryroid gland
Grave’s Disease
Antibodies bind to TSH receptors and chronically activate them.
Toxic thyroid nodules
nodule growns, causing hyperthyroidism.
Granulomatous thyroiditis
Self-limited inflammation of the thyroid gland. It is triphasic with an initial thyrotoxicosis, followed by a hypothyroidism and a return to normal function
Hashimoto’s thyroiditis
Autoimmune disease - antibodies to thyroglobulin (synthesis pathway) or thyroid peroxidase (enzyme in hormone synthesis pathway)
Lymphocytic thryoiditis
Autoimmune mediated inflammation of thryoid gland with release of thyroid hormone. Followed by a phase of hypothroidism
Thyroid cancer
Main type, papillary thyroid cancer.
Cushing Syndrome (hypofunction)
prolonged exposure to elevated cortisol due to pituitary ACTH oversecretion.
Addison’s disease (hyperfunction)
chronic adrenal issuficiency due to destruction of adrenal cortex (primary) or insufficient ACTH production in ant. pituitary (secondary). Could be caused by abrubt steroid disontinuations
Conn’s Syndrome
primary hyperaldosteronism (in the zona glomerulosa of the adrenal gland) causing hypersecretion of aldosterone independent of the Renin-Angiotensin system. This causes excessive fluid and salt retention and increased potassium secretion.
Phaeochromoctoma
Tumore of the adrenal medulla causing increased secretion of adrenaline or noradrenaline. (10% bilateral, 10% malignant, 25% genetic condition)
Short stature
growth hormone deficiency, lack of love
Down’s Syndrome (21)
3 copies of chromosome 21.
Edward’s Syndrome (18)
3 copies of chromosome 18
Patau’s Syndrome (13)
3 copies of chromosome 13
William’s Syndrome
deletion at position 7q11 on chromosome 7
Klinefelter Syndrome
47 XXY - extra X chromosome in males
Neurofibromatosis
mutation in NF1 gene causing growth of benign tumors along axons
Duchenne Muscular Distrophy
x linked recessive disorder
Ovotesticular DSD
In females, can be caused by mosaic form of SRY gene. In males, can be caused by variants of the SRY gene. In both cases it is when there is a developement of both mullerian and wolffian ducts. The extent to which this will happen will depend on testosterone and AMH hormone.
Testicular DSD
In XX 46 patients, when the path of developement goes to wolffian ducts and testes. Usually born with ambiguous genitalia, gynaecomastia, small testes and infertility.
Gonadal Dysgenesis
in XX 46 patients, when there is a failure in gonad developement
Congenital Adrenal Hyperplasia
In XX 46 patients, caused by enzyme 21 - hydroxilase defficiency. It is responsible for the conversion og progesterone to aldosterone and cortisol. But when it does not work the products build up and are transferred to the testosterone producing pathway. This causes excesses testosterone to be produced.