amenorrhea Flashcards

(46 cards)

1
Q

absence of normal menses for 3 normal menstural cycles of 6 mo or longer

A

amenorrhea

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2
Q

absence of menses in a woman who has never menstruated by 15y/o regardless if px has 2ndary sex char or not

A

primary amenorrhea

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3
Q

absence of menses by 13 y/o when there is no visible 2ndary sex char dev or by 15 y/o in the presence of normal 2ndary sex char

A

primary amenorrhea

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4
Q

absence of menses for an arbitrary period usu longer than 6-12mo;
those who have previously menstruated

A

secondary amenorrhea

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5
Q

for a female to develop breast, she should have

A

estrogen stimulation from ovaries

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6
Q

most common cause of primary amenorrhea

A

gonadal failure

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7
Q

gonadal failure is most commonly caused by

A

chromosomal disorder rarely by 17 a hydoxylase deficiency

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8
Q

enzyme that is needed in the production of mineralocorticoids and glucocorticoids

A

17a hydroxylase

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9
Q

what is the char of the chromosomes and gonads in pure gonadal dysgenesis

A

normal chromosomes

gonads do not develop

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10
Q

do px with gonadal failure have internal genitalia?

A

yes, and they will look grossly female

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11
Q

karyotype of px with turner syndrome

A

45XO missing X chromosome

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12
Q

what is the effect on height if the deletion occurs on the long arm

A

no effect on height

short arm - short stature

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13
Q

px 20y/o came in. PE shows webbed neck, low set ears and widely spaced nipples. Ht = 4’2”. This px can have associated problems such as

A
Coarc
tricuspid valve probs
renal ab
autoimmunde disorders like thyroiditis and myesthenia gravis
hypothyroidism (most common)
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14
Q

px 20y/o came in. PE shows webbed neck, low set ears and widely spaced nipples. Ht = 4’2”. This px can have associated problems such as

A
(TURNER syndrome)
Coarc
tricuspid valve probs
renal ab
autoimmunde disorders like thyroiditis and myesthenia gravis
hypothyroidism (most common)
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15
Q

in px w/ hypothalamic disorder, low estrogen lvls are due to

A

very low gonadotropin release from the pituitary

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16
Q

Causes of hypothalamic disorder causing primary amenorrhea

A

Lesions
inadequate release and/or synthesis from hypothalamus
isolated gonadotropin deficiency in pituitary gland

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17
Q

most common lesion that can cause hypothlamic pituitary disorder

A

prolactinoma - pituitary adenoma

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18
Q

in this disorder, the deficient is only FSH or LH

A

isolated gonadotropin deficiency in pituitary gland

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19
Q

isolated gonadotropin deficiency in pituitary gland is associated with

A

thalassemia major or retinitis pigmentosa

20
Q

what hypothalamic disorder can be secondary to mumps encephalitis

A

isolated gonadotropin deficiency in pituitary gland

21
Q

androgen resistance syndrome is aka

A

testicular feminization/ androgen insensitivity

22
Q

karyotype of px with androgen resistance syndrome

23
Q

in this disorder, there is an absence of an X chromosome gene resp for the cytoplasmic or nuclear testosterone receptor function

A

Androgen resistance syndrome

24
Q

main problem in androgen resistance syndrome

A

testosterone RECEPTOR

25
px came in with amenorrhea as cc. PE showed normal breast. scanty to absent pubic and axillary hair. No internal female organs upon examination. what could be the testosterone level of this px
This px has androgen resistance syndrome, testosterone lvls are normal since the problem is on the receptors. there is breast dev bcoz they still produce little estrogen
26
abnormal gonads have a high risk of malignancy esp
gonadoblastoma and dysgerminoma
27
karyotype of px with congenital absence of the uterus
46XX
28
karyotype of px with Mayer Rokitansky Kuster Hauser Syndrome
46XX
29
if there is regression of the mullerian ducts the px may have
absent uterus absent or short vagina normal ovaries
30
in px with vanishing testes syndrome why do they have absent male and female ganitalia
these px have AMH in utero which prevents dev of female genitalia, upon birth the testes would disappear and there is regression of gonads hence male genitalia is also absent
31
very high FSH and low estrogen results in
ovarian failure
32
medication for px with 17a hydorxylase deficiency
estrogen progestin replacement and cortisol replacement estrogen - breast dev progestin - protection of uterus vs mitotic proliferaton by estrogen
33
px came in complaining with amenorrhea even she has premenstrual symptoms. PE showed normal breast dev . She asked if can she still get pregnant, what would be your answer?
Yes since she has ovaries she can get pregnant thru IVF and transfer of fertilized ova to a surrogate recipient.
34
why gonads must be fremoved after epiphyseal closure and breast dev what medication can you give after removal
there is a tendency of malignancies (gonadoblastoma and dysgerminoma); estrogen therapy progestin is not needed bcoz px don't have uterus
35
in px with functional hypothalamic amenorrhea the abnormal GnRH pulsatility is caused by
increased opiod activity
36
In px with anorexia the decrease in leptin would result in an increase in
Neuropeptide Y
37
common lesions found in secondary amenorrhea
craniopharyngiomas, TB sarcoidosis
38
how can Craniopharyngiomas cause secondary amenorrhea
they interfere with GnRH release and low gondatotropin and estrogen lvls
39
almost all pituitary tuimors secrete
prolactin
40
most common non-prolactin secreting tumor
chromophobe adenoma
41
treatment in px who have chromophobe adenoma where surgery is contraindicated
bromocriptine
42
common cause of amenorrhea in px who are <40
premature ovarian failure
43
in px who are 25 who has amenorrhea you should screen for
immunologic d/o
44
Asherman's syndrome is usually secondary to
uterine surgery
45
Gold standard for the diagnosis of intrauteirine syndrome/adhesions
hysterescopy
46
most common cause of endometritis causing adhesions
Pelvic TB