Classification & external resources
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Pseudohypoparathyroidism is a condition caused by resistance to the parathyroid hormone. Patients have a low serum calcium and high phosphate, but the parathyroid hormone level is appropriately high.
- Type 1a pseudohypoparathyroidism has a characteristic phenotypic appearance (Albright's hereditary osteodystrophy), including short fourth and fifth metacarpals and a rounded facies.
- Type 1b pseudohypoparathyroidism lacks the physical appearance of type 1a, but is biochemically similar.
Additional recommended knowledge
The term pseudopseudohypoparathyroidism is used to describe a condition where the individual has the phenotypic appearance of pseudohypoparathyroidism type 1a, but is biochemically normal.
|Endocrine pathology: endocrine diseases (E00-35, 240-259)|
|Thyroid||Hypothyroidism (Iodine deficiency, Cretinism, Congenital hypothyroidism, Goitre, Myxedema) - Hyperthyroidism (Graves disease, Toxic multinodular goitre, Teratoma with thyroid tissue or Struma ovarii) - Thyroiditis (De Quervain's thyroiditis, Hashimoto's thyroiditis, Riedel's thyroiditis) - Euthyroid sick syndrome|
|Pancreas||Diabetes mellitus (type 1, type 2, coma, angiopathy, ketoacidosis, nephropathy, neuropathy, retinopathy) - Hypoglycemia - Hyperinsulinism - Zollinger-Ellison syndrome|
|Parathyroid||Hypoparathyroidism (Pseudohypoparathyroidism) - Hyperparathyroidism (Primary, Secondary, Tertiary)|
|Pituitary||Hyperpituitarism (Acromegaly, Hyperprolactinaemia, SIADH) - Hypopituitarism (Simmonds' disease/Sheehan's syndrome, Kallmann syndrome, Growth hormone deficiency, Diabetes insipidus) - Adiposogenital dystrophy - Empty sella syndrome|
|Adrenal||Cushing's syndrome (Nelson's syndrome, Pseudo-Cushing's syndrome) - CAH (due to 21-hydroxylase deficiency) - Hyperaldosteronism (Conn syndrome, Bartter syndrome) - Adrenal insufficiency (Addison's disease) - Hypoaldosteronism|
|Gonads||ovarian dysfunction (Polycystic ovary syndrome, Premature ovarian failure) - testicular dysfunction (5-alpha-reductase deficiency) - general (Hypogonadism, Delayed puberty, Precocious puberty)|
|Other||Autoimmune polyendocrine syndrome - Carcinoid syndrome - Short stature (Laron syndrome, Psychogenic dwarfism) - Gigantism - Androgen insensitivity syndrome - Progeria - Multiple endocrine neoplasia (1, 2)|