Sub-section: Adrenal Section: Endocrine

  • Group of Autosomal Recessive disorders characterised by deficiency in end steroid production and overproduction of steroid intermediaries
    • Due to enzyme deficiency in synthetic pathway that begins with cholesterol
    • Failure of negative feedback leads to increased pituitary secretion of ACTH
  • Leading to Adrenal Hyperplasia

21 Hydroxylase Deficiency

  • Most common
  • Glucocorticoid (Cortisol) and mineralocorticoid (Aldosterone) deficiency, overproduction of adrenal Androgens
  • Gives ⇒ Ambiguous female external genitalia, Hyperkalaemia, salt loss
  • Initial management is medical – steroid therapy beyond enzyme block as therapeutic and to restore negative feedback
  • Consider bilateral lap adrenalectomy if fails

17 Alpha-Hydroxylase Deficiency

11 Beta-Hydroxylase Deficiency