Menstrual Disorders Flashcards
What is primary amenorrhea?
13 y.o. without secondary sex characteristics
15 y.o. with secondary sex characteristics
Number one cause of amenorrhea?
Pregnancy
What is secondary amenorrhea?
3-6 months or more than 3 menstrual cycles missed
What is Oligomenorrhea
Cycles > 40 days
Abnormal levels for prolactin?
Greater than 20-200
Primary- no uterus, no breast cause
agondaism, XY genotype androgen insensitivity syndrome
Primary- yes uterus, yes breast
hyperprolacenemia, structural defects
Primary- No uterus, yes breast
congential absence of uterus, androgen insensitivity syndrome
Primary- Yes uterus, no breast
Hypothalmic or pituitary dysfunction, gonadal dysgensis
Labs- normal E2, FSH, LH
PCOS
Labs- Decreased E2 and FSH
Pituitary problem
Labs- decreased E2 elevated FSH
Gonadal dysgenesis or POF
Labs- elevated DHEA
Adrenal tumor
Labs- elevated 17-hdyroxyprogesterone
Congenital adrenal hyperplasia
What does progesterone test tell you?
If there’s a structural abnormality. If it’s a deficit of estrogen, just check the E2 level
Causes of outflow tract obstruction
Imporfate hyman, transverse septum Mullarian agenesis Complete androgen insensitivity (XY genotype) Asherman Syndrome (D/C and infection) Cervical Stenosis
Causes of ovarian failure
Gonadal Dysgenesis (do karyotype)
Turner Syndrome
FSH and LH receptor mutations
POF
Causes of Hypothalamic Dysfunction
Stress, weightless, illness, exercise Kallman Syndrome (ansomnia) Congenital GnRH deficiency GnRH receptor deficiency Craniopharyngioma- most common, visual defecits
Causes of Pituitary Dysfunction
Prolacenmoa
Sheehan Syndrome
Hemochromocytosis
Isolated FSH/LH deficency
Causes of non gonadotropic amenorrhea
PCOS, congenital adrenal hyperplasia, cushing syndrome, hyperprolacinoma, thyroid disease
What is 17-hydroxyprogesterone associated with and why does it cause amenorrhea?
Associated with congenital adrenal hyperplasia. Causes amenorrhea because it activates progesterone receptors (decreasing release of FSH and LH)
Why does DHEAS cause amenorrhea?
Don’t know