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55 Cards in this Set

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21 alpha hydroxylase deficiency
hypotension, decreased cortisol, increased ACTH, increased sex hormones, hyperkalemia--> see female pseudohermaphrodism
17 alpha hydroxylase deficiency
super high mineralocorticoids

HTN, hypokalemia, decreased sex levels and decreased cortisol
11 beta hydroxylase deficiency
no cortisol, stimulates an increase in ACTH, so you have a diversion to the androgens--> you see HTN because deoxycorticosterone has mineralocorticoid activity
Leuprolide, Goserline and Nafarelin
GnRH mimics
Ketoconozale
prevents steroid synthesis, antifungal, but also used for polycystic ovarian disease to prevent hirsutism
Finasteride
5 alpha reductase inhibitor, used to prevent conversion of testosterone to DHT, because DHT has a much higher affinity to the testerone receptor

inihibition of this can treat BPH and male pattern baldness
Anastrozole
Aromatase Inhibitors, used to treat breast cancer caused by increased estrogen synthesis

testerone turns into estrogen in the presence of aromatase in the granulosa cells
Flutamide and Cytoproterene
these bind to the testerone receptors on the target cells, preventing testosterone or DHT action

used to treat prostate carcinoma
Diagnostic for menopause?
elevated levels of serum FSH

estrogen synthesis slows, stops in menopause from degenerate ovaries--> no feedback inhibition on FSH

later on, LH increases as well
Where does progesterone come from for a baby?
1st trimester, hcG stimulates the corpus luteum to keep producing progesterone

2nd and 3rd trimesters: progesterone from placenta
estrogen from the fetal adrenal gland
Tell what TRH does
Stimulates the release of Prolactin and TSH
Tell me what Prolactin does
Inhibits GnRH

Dopamine inhibits Prolactin

stimulated by TRH
What does FSH do?
stimulates aromatase to convert androstendione into estrogen
What does LH do?
stimulates the theca cells to convert cholesterol into androstendione via desmolase

the androstendione can convert into estrogen with the aromatase in the granulosa cell
what is structurally similar to hcG?
FSH, LH and TSH

hcG may stimulate the TSH receptor and cause hyperthyroidism
What does Hashimoto's thyroiditis look like?
Diffuse monocytic infiltrate with lymphocytes and plasma cells; see Hurthle Cells which are follicular epitherlial cells undergoing metaplastic change, they form large oxyphilic cells with granular cytoplasm.
What do you use to treat vWF deficiency?
in mild cases where there is still some vWF being made, you treat with DDVAP, to induce endothelial cell to release the vWF.

in women, use OCP
Functions of the Sertoli Cells
Non Germ Cells

secrete Inhibin (to inhibit FSH)
secrete Androgen Binding Protein (to maintain testosterone levels)
Forms the blood testis barrier

Regulate spermatogenesis
Spermatogenesis
begins at puberty, takes 2 months for complete maturation, occurs in the semiferous tubules

sertoli cells support spermatogenesis
Secondary Spermatocyte
2ndary=2n

Haploid

Primary spermatocyte is Diploid (4n)
Where does estrogen come from?
the ovary, placenta and blood

estradiol is more potent than estrone> estriol
What is the relationship between estrogen and sex hormone binding globulin?
estrogen increases the hepatic synthesis of transport proteins

so there is an increase in synthesis of sex hormone binding globulins
What is desmolase?
LH secretion stimulates the desmolase to convert cholesterol into androstendione in the Theca Cells
What maintains lactation?
Prolactin (also inhibits GnRH secretions, so no FSH and LH stimulation, and antagonise the actions of LH and FSH on the ovaries)
What is the problem in Klinefelter's Syndrome
XXY, dysgenesis of seminferous tubules, no inhibin, no feedback inhibition of FSH. Abnormal Leydig formation, leads to increased LH, no testerone, and increased estrogen
What is female pseudohermaphrodism?
ovaries are present, but external genitalia is virilized, or ambigous. Excessive and inappropriate exposure to androgenic steroids during early gestation.

Congenital Adrenal Hyperplasia or exogenous androgen administration during pregnancy
Male pseudohermaphrodite?
testes present, but external genitalia is ambigous

androgen insenstivity syndrome (testicular feminization)
See high levels of estrogen, testosterone and LH
Androgen Insensitivity Syndrome

supermodels

46 XY

defect in the androgen receptor. Uterine tubes and uterus are generally absent. Develop testes but they are in the labia majora
Penis at 12
5 alpha reductase deficiency
Preeclampsia
hypertension, proteinuria and edema

ecclampsia (seizures)

if this is seen before 20 weeks, suggests a molar pregnancy

may be associated with HELLP (hemolysis, elevated LFTS, and low platelets)
What should you give to an ecclamptic woman to treat her symptoms?
Magnesium Sulfate and Diazepam
Painful bleeding in the 3rd trimester
associated with abruptio placenta (premature detachment of placenta from the implantation site)

fetal death, assocaited with DIC

increased risk with smoking, cocaine use and HTN
Massive bleeding after the delivery?
Placenta Accreta

defective decidual layer allows the placenta to attach to myometrium. Predisposition with prior C section or inflammation
Painless bleeding in ANY trimester
Placenta Previa-- attachment of placenta to the lower uterine segment-- may occlude the internal os
Pain without bleeding in a pregant woman
Ectopic Pregnancy

suspect with an increased hCG and sudden lower abdominal pain

mistaken for an appendicitis
polyhydraminos
>1.5--2 Liters of amniotic fluid

associated with esophageal/duodenal atresia, causing an inability to swallow amniotic fluid, and with anencephaly
Most common of all tumors in females
Leiomyoma

benign, smooth muscle tumor, rarely transforms into malignancy

Estrogen Sensitive

peak occurence at 20-40 years of age

may cause bleeding

histologically: whorled patterns of smooth muscle bundles
Leiomyosarcoma
bulky irregular shaped tumor with areas of necrosis and hemorrhage, typically arizing de novo

increased incidence in blacks

HIGHLY aggresive, with the tendency to recur

may protrude from the cervix and bleed
vWF deficiency
will have a prolonged bleeding time and a PTT

vWF is part of factor VIII
Fetal Hemoglobin
alpha 2 and gamma 2
How do you treat nephrogenic diabetes insipidus?
thiazides
What does clostridium look like?
Gram negative bacillus
Churg Strauss
severe asthma, obstructive lung function tests, necrotizing vasculitis, granulomas and vessel infiltration
When you have hyperkalemia, what should you think about the pH?
metabolic acidosis
What hormone levels will you see in polcystic ovarian disease?
increased LH, decreased FSH and increased testosterone
stromal breast pathologies
fibroadenoma and pyllodes tumor
phyllodes tumor
massive tumor, mostly benign but may turn malignant
intraductal papilloma
most common cause of bloody nipple discharge in women younger than 50

no increased risk for malignancy
breast cancer
genetic base in less than 10% of cases

1 in 8 lifetime risk
mean age is 64

initial management of breast mass is fine needle aspiration
what do mammographys do?
screening test for microcalcifications; most often occur in ductal carcinoma in situ and sclerosing adenosis

outer quadrant: axillary nodes
inner quadrant: internal mamillary nodes
Breast cancer prognoses
Screen for estrogen and progesterone receptor assays

also screen for S phase (above 5% is bad sign)
infiltrating ductal carcinoma
stellate-shaped scar

this is the worst and most invasive
whtat prevents menstrual blood from clotting?
plasmin
What causes anovulatory Dysfunctional Uterine Bleeding?
excess estrogen stimulation relative to progesterone, absent secretory phase of the cycle. Causes endometrial hyperplasia and bleeding
Acute endometriosis
most often due to group B strep pathogen-- most often due to a bacterial infection following a delivery or miscarriage