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135 Cards in this Set

  • Front
  • Back

Erection is due to parasympathetic stimulation via what nerve?

Pelvic nerve - nitric oxide here causes vasodilation and blood fills penis

Vagina muscles in wall cramp up when touched, and that's really painful, then they cramp more and become more painful. Vestibulitis is if you touch bartholin glands at opening of vagina and patients have a TON of bruning pain even though you're just touching (allodynia)

Prevents cGMP breakdown that leads to corpus cavernosum smooth muscle relaxation, so the vessels fill

Which nerve mediates the sympathetic response of sperm "emission" - where it moves from testes to the prostatic urethra?

hypogastric nerve

Which nerve involved with ejaculation?

Pudendal nerve - ejaculation is sympathetic!

Which ligament connects uterus, fallopian tubes, and ovaries to side wall? this ligament is ligated in hysterectomies

Broad ligament

Suspensory ligament connets the ovaries to the ____. The ovarian ligament connects the ovaries to the _____

Pelvic wall, uterus

Which ligament contains uterine vessels? Which one contains ovarian vessels?

Cardinal ligament, suspensory ligament of ovary

Vagina histo? Cervix histo? Fallopian tubes? Ovary?

Stratified squamous, simple columnar, ciliated columnar, simple cuboidal

Pudendal nerve block occurs at ischial spine, happens during deliveries often

Just know this

Why is a vericocele more common on left rather than right scrotum?

because right scrotom has less pressure b/c it brings blood RIGHT INTO IVC, left drains into left renal vein then IVC

Ovaries and testes lymphatic draining into

Para aortic lymph nodes

Indirect inguinal hernia and direct hernia - relationship to inferior epigastric artery. How about femoral hernias?

Indirect is lateral to this artery through inguinal ring. 

Direct hernia is MEDIAL to inferior epigastric artery through hesselbach's triangle (made up of inguinal ligament, lateral border of rectus abdominus, and inferior epigastric artery). 
...

Indirect is lateral to this artery through inguinal ring.




Direct hernia is MEDIAL to inferior epigastric artery through hesselbach's triangle (made up of inguinal ligament, lateral border of rectus abdominus, and inferior epigastric artery).




FEMORAL HERNIAS below lignuinal ligament

Mesonephric duct goes on to become male genitalia if acted on by testosterone. Paramesonephric duct (mullerian) makes female genitalia unless inhibited by mullerian inhibiting factor

just know that

If two paramesonephric ducts don't fuse, what happens?

Bicornuate uterus - leads to infertility and stuff

SRY gene codes for

testis determining factor, which will make sertoli cells (which make MIF - mullerian inhibiting factor), Leydig cells - make testosterone (act on mesonephric ducts to make internal male genitals). Also makes 5 alpha reductase - converts testosterone to DHT which makes male external genitalia

What is exstrophy of the bladder? What congenital condition is it associated with?

Congenital gap in anterior bladder wall and abdominal wall infront of it.


Interior of bladder is open to outside world



-Associated w/ epispadias

Sertoli cells stimualted by ____. They secrete ____ , ____ and _____

FSH.


Stroll cells secrete:


1. MIF


2. Inhibin (decreases FSH)


3. ABP - androgen binding protein (which maintains level of testosterone in seminiferous tubules to help maturation of spermatogonia)

Finasteride what kind of drug? What do we use finasteride to treat?



---------------------


Flutamide is what kind of drug? What do we use flutamide to treat?

Finasteride slowly reduces DHT levels, used to treat BPH
S/Es: decreased libido, impotence, ejaculatory disorder


------------------


Flutamide is a competitive inhibitor at testosterone receptor and used in prostate cancer

Ketoconazole and spironolactone used in PCOS, how does each work?



S/Es of these 2 drugs?

Ketoconazole inhibits desmolase,


Spiro inhibits steroid binding



S/Es: gynecomastia, amenorrhea

Females with rudimentary vagina but 46 XY. Testes in labia majora



---------------



Androgen insensitivity - you don't have upper portion of vagina but you have lower portion, testes found in labia majora

Hypogonadic gonadism with olfactory bulb defect

Kallmann syndrome - female with primary amenorrhea or males with small testes

High riding testis with long axis oriented weirdly with absent cremasteric reflex

Testicular torsion

Failure of testis to descend into scrotum

Cryptorchidism

Testicular tumor with watery cytoplasm/fried egg appearance
 
(similar histologic appearance to oligodendrogliomas)
 
---------------------
Late mets & good prognosis

Testicular tumor with watery cytoplasm/fried egg appearance



(similar histologic appearance to oligodendrogliomas)



---------------------


Late mets & good prognosis

seminoma

Malignant tumor with painful, palpable mass in the scrotum and eleveated hCG
 
Histology is more glandular 

Malignant tumor with painful, palpable mass in the scrotum and eleveated hCG



Histology is more glandular

Embryonal carcinoma

Most common testicular cancer in children < 3
Elevated AFP, with schiller-duval bodies in testes (look like glomeruli)

Most common testicular cancer in children < 3


Elevated AFP, with schiller-duval bodies in testes (look like glomeruli)

Yolk sac tumor (aka aneodermal sinus tumor)

Lab values: Which tumors have increased...



1. AFP


2. hCG


----------------------------------------------------



Teratomas in males vs teratomas in females

1. AFP -- Yolk sac tumor


2. hCG -- choriocarcinoma, Embryonal carcinoma


----------------------------------------------------



Teratomas in males = MALIGNANT


Teratomas in females = benign

Testicular cancer,
Elevated hCG ,
tumor of trophoblasts,
can metastasize hematogenously 

Testicular cancer,


Elevated hCG ,


tumor of trophoblasts,


can metastasize hematogenously

Choriocarcinoma

Ranke crystals, androgen producing tumors of testes and can cause gynecomastia or percocious puberty

Ranke crystals, androgen producing tumors of testes and can cause gynecomastia or percocious puberty

Leydig cell tumor (a non-germ cell tumor)

These benign testicular tumors secrete estrogen and can cause gynecomastia, can be associated with puetz jeghers syndrome or carney syndrome

Sertoli cell tumors (a non-germ cell tumor)

Metastasis to testes, common in older men

testicular lymphoma

1. Fluid in scrotum due to incomplete fusion of processus vaginalis



---------------------


2. Dilated epididymal ducts

1. Hydrocele



---------------



2. Spermatocele

Dilated veins in pampiniform plexus and can cause infertility with "bag of worms" fealing in scrotom

Varicocele

Spermatocele

dilated epididymal duct

Greyish blue weird scap on genitalia that can progress to invasive squamous cell carcinoma in some patients

Greyish blue weird scap on genitalia that can progress to invasive squamous cell carcinoma in some patients

Bowen's disease

Angulation/bent penis, painful erections

Peyronie disease - due to inflammation and fibrous tissue formation of tunica albuginea

Prostatitis in younger man?



Older man?

Young people - think chlamydia/gonorrhea (sexual),



Older think UTI bugs (ecoli, kelbsiella, proteus, enterobacter).



Tx older people with fluoroquinolones and TMP/SMX

How does prazosin/doxazosin/terazosin help with BPH?



Side effects of these drugs?


--------------------------------



What is tamulosin?

relaxes prostate smooth muscle and improves urine flow



S/Es: Dizziness, postural hypotension, fatigue


---------------------------


Selective alpha1AD blocker



Fewer side effects than the -osins (nonselective alpha1 blockers)



Tamulosni does not affect the alpha1b receptors in blood vessels so you get NO antihypertensive effect

Where does prostate cancer metastasize to commonly? How do you treat it?

Bone (you'd see increased alk phos).



Treat with flutamide/resections



--Flutamide is a testosterone receptive competitive antagonist

Estrone vs estradiol vs estriol



Remember the 1 + 2 = 3 (man + woman = baby)

Estrone is made in periphery by fat cells via aromatase.



Estradiol - made in ovaries, abundant in women and gives women female characteristics.



Estriol found in placenta

Which two layers of endometrium are shed during menstruation?

Stratum compactum and stratum spongiosum (but stratum basalis stays)

Stratum compactum and stratum spongiosum (but stratum basalis stays)

What is mittelschmerz?

Mid cycle pelvic pain associated with ovulation; caused by peritoneal irritation caused by serous fluid release

Primary oocytes (diploid) arrested in ____


--------------------------------------------------------


Seconary oocytes (haploid) arrested in ____

Prophase I until ____. ovulation
 
Metaphase II until
("egg MET sperm"

Prophase I until ____. ovulation



Metaphase II until


("egg MET sperm"

Hormonal birth control supresses ovulation (because no LH surge occurs) and thickens cervical mucus (progesterone) and thins endometrium (progesterone)

just know that

Avoid OCPs in these women

Patients with history of clot/stroke, smokers > 35, or those who have migraines with auras

Clear cell adenocarcinoma of vagina with anatomic abnormalities of genital tract due to in utero exposure to

DES - diethylstilbestrol

This form of birth control is associated with bone mineral density loss, especially long term

Medroxyprogesterone (depo-provera IM shot)

IUDs are contraindicated in these patients

STDs - because you can push the infection into the wall and cause it to spread

Which vaginal wall tears correspond to a cystocele? Rectocele? Enterocele?

(1) anterior wall, bladder bulges into vagina - cystocele. (2) Posterior wall - rectum bulges through - rectocele. (3) Tear at tope of vagina - small intestines bulge through, that's an enterocele

What is vaginismus? what is vestibulitis?

Vagina muscles in wall cramp up when touched, and that's really painful, then they cramp more and become more painful. Vestibulitis is if you touch skene ducts or bartholin glands at opening of vagina and patients have a TON of pain even though you're just touching (allodynia)

Balloon/ball of inflammation at opening of vagina?

Balloon/ball of inflammation at opening of vagina?

Bartholin duct or skene duct cyst



What do these glands do? -- vaginal lubrication production

VIN?


VAIN?

Vulvar and vaginal intraepithelial neoplasia - very similar to CIN (all of these are pre-cancerous) but vulvular or vaginal. Associated with HPV (16, 18, 31, 33)

HPV genes that can cause cancer?

E6 and E7.
 
E6 - degrades p53, E7 inhibits Rb
 

E6 and E7.



E6 - degrades p53, E7 inhibits Rb


What do you see on histology for CIN/VIN/VAIN?

Koilocytes - look like a fried egg like oligodendrocytes
 

Koilocytes - look like a fried egg like oligodendrocytes


Vaginal cancer in girls < 4,
 
with spindle shaped cells and "grape like" appearance of tumor in vagina.
 
Also has positive desmin stain
-------------------------------------------------
Associated w/ DES (synthetic estrogen) exposure in utero

Vaginal cancer in girls < 4,



with spindle shaped cells and "grape like" appearance of tumor in vagina.



Also has positive desmin stain


-------------------------------------------------


Associated w/ DES (synthetic estrogen) exposure in utero

Sarcoma botryoides - these arise from bladder or vaginal wall



-------------------------------------


Clear cell adenocarcinoma of the vagina

How does cervical cancer spread? What changes can you see w/ advanced disease?

- Spreads locally



- Clinically staged



- Lateral invasion can block ureters, leading to renal failure

Endometrial tissue found outside uterus?


---------------------------------------------------------



Chocolate cysts, severe pain related to menstruation

Endometriosis



---------------------------------



Endometrioma or endometriosis in general

Theories for endometriosis pathogenesis?

Retrograde menstrual flow, hematologic/lymphatic spread,


direct spread,


or metaplasia

Tx for endometriosis

1. OCPs


2. Leuprolide (continuous GnRH agonist) as well 3. Danazol - mild androgenic medication to counteract estrogen and supress endometrial tissue

Endometrial tissue found within myometrium? What is this and what would you see on histology?

Adenomyosis - smooth muscle with endometrial glands inside of it on histology

Benign smooth muscle tumor in uterus that is estrogen sensitive and have a whorl pattern on histology?
 
-Increased rates in black women
 
-Stain positive for design

Benign smooth muscle tumor in uterus that is estrogen sensitive and have a whorl pattern on histology?



-Increased rates in black women



-Stain positive for design

Leimyoma (fibroid)



-Either asymptomatic or can cause bleeding

Tx for leimyomas? aka fibroids

OCPS, leuprolide (continuous GNRH analog), ablation or hysterectomy



Bulky, irregular shaped tumor with areas of necrosis and hemorrhage in uterus



Arises de novo



increased rates in black females



also stains positive for desmin stain

Leiomyosarcoma

LH acts on theca cells to make ____ via _____ (enzyme). This product crosses over into granulosa cells through the basement membrane.  
 
In the granolas cells, aromatase converts it to estradiol when activated by FSH

LH acts on theca cells to make ____ via _____ (enzyme). This product crosses over into granulosa cells through the basement membrane.



In the granolas cells, aromatase converts it to estradiol when activated by FSH

Makes androstenedione from cholesterol via desmolase

Diagnostic criteria for PCOS

2 of the following 3 are necessary for diagnosis
 
- oligo/anovulation
- hyperandrogenism,
- polycystic ovaries on ultrasound

2 of the following 3 are necessary for diagnosis



- oligo/anovulation


- hyperandrogenism,


- polycystic ovaries on ultrasound

Increased LH/FSH ratio

PCOS



1. LH stimulates theca cells to make androgens (that's why you get hirsutism)



2. That stimulates estrogen production from granulosa cells (which feed back and inhbit FSH production) - that's why your ratio is greater (LH/FSH)



----------------



ANVOLUTION results from the dysregulation of these hormones

Insulin resistance and obesity are also involved with PCOS - one of the mainstays of treatment is weight loss and metformin.



What do you use to treat hirsutism and estrogen overload?

Spironolactone and OCPs or progesterone, or leuprolide in pulsatile fashion

Clomiphene -- what's it used for? What's its mechansim of action?



Side effects?

Clinical use: anovulation, PCOS



MOA: Partial agonist at estrogen receptors in the hypothalamus --> relatively decreases the negative feedback of estrogen, therefore increases FSH



Side effects: hot flashes, vision changes, ovarian hyperstimulation & enlargement

CA-125

marker for ovarian cancer, but not specific, so mainly used to monitor disease

Gene mutations associated with family history of ovarian cancer?



What are some additional risk factors?

BRCA1, 2, and lynch syndrome



- Uninterrupted ovulatory cycles


- Nulliparity

What are the 4 categories of ovarian tumors?

Epithelial, germ cell, stromal, and metastatic

What are the types of epithelial ovarian tumors?

Serous, mucinous, endometrioid, clear cell, Brenner, mixed

Benign ovarian tumor/cyst lined by fallopian tube (ciliated) epithelium

Serous cystadenoma

Malignant ovarian tumor with psammoma bodies

serous cystadenocarcinoma

Ovarian tumor with cells that look like intestine, filled with mucine

mucinous cystadenoma or cystadenocarcinoma

Pseudomyxoma peritonei

This is intraperitoneal mucinous material that characterizes mucinous cystadenocarcinoma, also seen with cancers of the appendix

Ovarian tumor that's benign, solid, encapsulated, and looks like transitional epithelium of the bladder with "coffee bean" nuclei

Ovarian tumor that's benign, solid, encapsulated, and looks like transitional epithelium of the bladder with "coffee bean" nuclei

Brenner tumor

What are the ovarian germ cell tumors?

teratoma, dysgerminoma, endodermal sinus (yolk sac), and choriocarcinoma

Teratoma in patients with hyperthyroid? Are teratomas in females benign or malignant? What about males?

Struma ovarii teratoma - can have functional thyroid tissue in it



- Teratomas in men = malignant


- Teratomas in women = benign

Ovarian tumor equavalent of seminoma in males.



Made of undifferentiated germ cells - "sheets of uniform cells".



May produce LDH and hCG and associated with Turner syndrome

Dysgerminoma

Elevated AFP, with schiller-duval bodies in ovaries (look like glomeruli)



---------------------



Common site of mets for choriocarcinomas?

Yolk sac tumor aka endodermal sinus tumor



----------------------------------



Lung

What are the three types of stroma/sex cord ovarian tumors?



------------------------------------




Fibromas, granulosa-theca cell, sertoli-leydig cell



---------------------


Sertoli-leydig tumor details:



-Rare, large


-Contain testicular structures that produce androgens --> virilization



Meig's syndrome

Fibroma (benign ovarian tumor),


ascities (fluid in abdominal cavity), and


pleural effusion (hydorthorax)

Call exner bodies - eosinophilic fluid-filled spaces between granulosa cells
 
Further clues:
malignant, secretes  estrogen/progesterone/inhibin 
 
-can cause endometrial hyperplasia or percocious puberty

Call exner bodies - eosinophilic fluid-filled spaces between granulosa cells



Further clues:


malignant, secretes estrogen/progesterone/inhibin



-can cause endometrial hyperplasia or percocious puberty

Granulosa cell tumor

Musin-secreting signet ring cells in ovaries

Musin-secreting signet ring cells in ovaries

Krukenberg tumor metastasizing from GI (gastric cancer usually)

Cytotrophoblasts and syncytiotrophoblasts - what do they do?

They are the fetal component of the placenta.



Cytotrophoblasts are the inner layer and contain stem cells.



The syncytiotrophoblasts make bHCG and they're the outer layer, important for nutrient and waste transmission

Decidua basalis

Base layer of endometrium making up the maternal component of the placenta

What is the urachus? What happens if it doesn't close?

Connects fetal bladder to yolk sac. If it doesn't close you can have urine coming out of belly button, or outpouching of bladder into it

What is the vitelline duct? What happens when it doesn't obliterate?

Connects fetus midgut to yolk sac. If it doesn't obliterate, you get meckel diverticulum or a fistula to the belly button

Trisomy 21 vs Trisomy 18 on quad fetal screening (AFP estriol and hCG - which ones are low and high in each?




------------------


Side note... what is the mCC of abnormal serum screening?

In trisomy 18 - ALL ARE LOW



In trisomy 21, hCG is high, AFP & estriol are low


---------------------



MCC of abnormal serum screening is incorrect dating

What would you see on quad screen (fetal testing) with neural tube defects, abdominal wall defects, or multiple gestations (twins)?

Increased AFP

Twin-twin transfusion syndrome happens when twins share a placenta - what is this?

Anastamosis leads to shunting of blood - donor baby is anemic, pale, growth restricted. Recipient baby has polycythemia, fatter, and has heart failure

Edmeatous/grapelike chorionic villi are the buzzword for

Edmeatous/grapelike chorionic villi are the buzzword for

hydatiform mole pregnancy

Complete vs partial hydatiform mole pregnancy

Complete: 46xx or 46xy


- REALLY REALLY HIGH hCG


- Large uterus



Partial : 69xxy or xxx or xyy


- not as high hCG


- normal uterine size


- can have some fetal parts


- lower risk of choriocarcinoma or malignant trophoblastic disease

Early uterine rupture is pathognumonic for

Complete mole pregnancy

"honeycomb" or "snowstorm" appearance of uterus on ultrasound

Mole pregnancies

what is placenta previa?



What's the worst type? How does this present and what's the "cure"?

 
It's abnormal placement of the placenta.
 
Placenta attaches over or near the cervix so we can get a "preview" of the placenta in the cervical os
 
Complete is the worst, where it covers the cervix completely and baby can't be delivered throu...


It's abnormal placement of the placenta.



Placenta attaches over or near the cervix so we can get a "preview" of the placenta in the cervical os



Complete is the worst, where it covers the cervix completely and baby can't be delivered through there - so have to do C section.



Mom's present with painless vaginal bleeding

What is vasa previa?

fetal blood vessels covering cervix - massive risk of fetal hemorrhage if these tear

Painful vaginal bleeding in third trimester

placental abruption - trauma/smoking/cocaine increase risk of this happening

Why is fetal esophogeal or duodenal atresia associated with polyhydramnios?



Why is renal agenesis or posterior urethral valves associated with oligohydramnios?



------------------------------------------------------



Important association w/ polyhydramnios is:

Normal flow of amniotic fluid goes out of the baby (pee) and is swallowed by the baby, so if you have esophogeal issues or atresia, you can't swallow it and it builds up.



If you can't pee it out, you have oligohydramnios



----------------------------------------------------



Maternal diabetes is a huge predisposing risk factor for polyhydramnios


Oligohydramnios, limb/facial deformities, and pulmonary hypoplasia

Potter syndrome

Diagnostic criteria for preeclampsia? For eclampsia?

Preeclampsia - hypertension and proteinuria. Eclampsia = preeclampsia + seizures



----> see edema in face & upper extremities! (not diagnostic criteria, but a good tip)

What is HELLP syndrome?

**COULD SEE FIBRINOID NECROSIS IN PLACENTA VESSELS**

**COULD SEE FIBRINOID NECROSIS IN PLACENTA VESSELS**

Treatment for eclampsia? Side effects of this treatment?


Deliver baby and give IV magnesium sulfate for seizure risk




S/Es of Mg:


- Decreased DTRs


- Pulmonary edema


- Altered mental status


- Cardiac conduction defects

Pathogenesis of gestational diabetes?



First line drug for gestational diabetes?



-------------------------------------------------------------


Type I or Type II diabetes while pregnant are associated w/ which fetal anomalies?

HPL - human placental lactogen - this is physiologically important because it increases maternal insulin resistance to leave more glucose in blood for baby, but when this is extreme, you get gestational diabetes.



Baby can have macrosomia and risk of stillbirth



First line -- try weight loss. Then use insulin



-------------------------------------


- Congenital heart defects -- transposition of the great vessels


- Neural tube defects


- Caudal regression syndrome -- poor formation of the lower spine w/ problems in bladder control

Positive hCG, abdominal pain like appendicitis during first trimester and vaginal bleeding

Ectopic pregnancy -- where is most common location?



Fallopian tube



Symptoms?



- Occurs in 1st trimester


- Positive hCG


- Abdominal pain (b/c of bleeding)



Risk factors? ... anything that can cause scarring


- Infertility


- Salpingitis, PID


- Ruptured appendix


- Endometriosis


- Prior tubal surgery

Categories A, B, C, D, and X of drugs in pregnancy

A - safe.


B - presumed safety based on animal studies.


C - no studies show adverse effect,


D - human risk but benefits may outweigh risk,


X - contraindicated, risk clearly outweights benefits

Diseases in pregnancy and medications we use to treat -


(1) Hypertension


(2) Diabetes


(3) Epilepsy


(4) Hyperthyroidism


(5) Anticoagulation

(1) Hyertension - methyldopa, hydralazine, labetalol



(2) Diabetes - insulin



(3) Epilepsy - AVOID VALPROIC ACID, but can use anything else but supplement with increased folic acid to prevent neural tube defects



(4) Hyperthyroidism - PTU in 1st trimester, MMU in 2nd/3rd



(5) Anticoagulation - heparin or enoxaparin

Tocolytics are used to delay pregnancy - what are these?



Which drugs do we usually give with these drugs?

Indomethicin (cox inhibitor preventing stimulatory PGE formation),



Nifedipine - calcium channel blocker causes myometrial relaxation



Terbutaline, Ritrodine - B2 agonist on uterus and relaxes myometrium



Magnesium sulfate for seizure prophylaxis



--------


Give GCs (betamethasone, dexamethasone) to help increase fetal lung development

What do you use to promote labor in somebody to help with contractions/cervical dilation?

Prostaglandin anologs - dinoprostone, misoprostol and oxytocin

Mifepristone - this is used in medical abortions with 2 other drugs - name those drugs and the mechanisms of action of all of them

Synthetic steroid that's a competitive inhibitor of progesterone receptors



Used for abortions in addition to misoprostol (makes you contract) and methotrexate

name the teratogenic properties of these drugs (1) Ace inhibitors,


(2) aminoglycosides (eg gentamicin),


3 - Fluoroquinolones,


4- tetracyclines,


5- chlormphenicol,


6 - valproic acid,


7 - lithium,


8 - isotretinoin,


9 - DES (diethylstilbestrol),


10 - statins,


11 - thalidomide (used to treat multiple myeloma and other cancers)

1) Ace inhibitors - renal malformations, (2) aminoglycosides (eg gentamicin - ototoxicity ), 3 - Fluoroquinolones - cartilage damage, 4- tetracyclines - discolored teeth , 5- chlormphenicol - gray baby syndrome, 6 - valproic acid - neural tube defects , 7 - lithium - ebstein anomaly, 8 - isotretinoin - spontaneous abortion or really bad birth defects (category X) , 9 - DES (diethylstilbestrol) - vaginal clear cell adenocarcinoma 10 - statins - CNS/limb defects 11 - thalidomide - limb defects ,

Which drugs can cause gynecomastia?

Some Drugs Cause Awesome Knockers -


Spiro


Digoxin


Cimetidine


Alcohol (chronic)


Ketoconazole

Non-proliferative breast changes can either be

Fibrosis - hyperplasia of breast stroma, or cysts (aka "blue dome cysts" - fluid filled)

Caffeine and dietary fat can cause benign proliferative changes in breasts

just know that

Proliferative, benign, increased acini and intralobular fibrosis and calcifications without atypia in breast tissue

Sclerosing adenosis

Complex sclerosing lesion with radial scar on mammogram

Looks like fat necrosis, scar with irregular shape, but it's benign but proliferative

What are the three benign breast tumors to know?

Fibroadenoma,


Intraductal papilloma,


Phylllodes tumor

Small, firm breast tumor with regular edges.


Mobile, common in women under 25, and increases in size with estrogen exposure

Fibroadenoma - NOT a precursor for breast cancer

Small breast tumor, benign (but small cancer risk) found inside of lactiferous ducts, and causes serous/bloody nipple discharge

Intraductal papilloma

Large benign bulky tumor of the breast with leaf like projections on histology

Phyllodes tumor

Most important prognostic factor of breast cancer?

Lymph node involvement

Two general types of breast cancer?

Ductal - arises from duct epithelium, Lobular - arises from lobules (glands)

DCIS - ductal carcinoma in situ - what are the subtypes?


-------------------------------------



What is the characteristic finding of DCIS on mammography?

(1) Comedocarcinoma - caseous necrosis, solid, cribiform, papillary, micropapillary



----------------------------


Dystrophic calcification

Eczema-like patches on nipple and areola suggesting underlying carcinoma

Paget disease of breast - assocated with UNDERLYING DCIS

Signet ring cells in this breast cancer.



These cancers are ALWAYS ER+ and PR +



Relatively lower risk of progression to invasive carcinoma

LCIS - lobular carcinoma in situ

MC type of invasive breast cancer


- Firm, rock hard, immobile breast mass with sharp margins, often arises from DCIS

Invasive ductal carcinoma

Generally multiple & bilateral


Inactivation of E-cadherin genes,


ER+ and PR+ breast cancer,


and also has signet ring cells

invasive lobular carcinoma

What is tamoxifen? How does it work?



Tamoxifen activity in breast tissue vs endometrial tissue?

Tamoxifen = selective estrogen receptor modulators (SERMs)



- Antagonist at ER in breast,


- Agonist in endometrial tissue, so increases risk of endometrial cancer

Alternative to tamoxifen - estrogen agonist in bone, antagonist in breast, and does NOT cause increased endometrial cancer risk

Raloxifene

Anastrozole is also used to treat breast cancer - how does this work? Who is it commonly used in and what side effect is it assocaited with?

Inhibits aromatase -- thus inhibiting production of estrogen



Used in post menopausal women with breast cancer.



Side effect - osteoperosis due to antagonistic effect on bones

MC breast tumor in women under 25

Fibroadenoma

MC breast mass in postmenopausal women

Invasive Ductal Carcinoma

MC breast mass in premenopausal women

Fibrocystic change of the breast

Loss of e-cadherin adhesion gene on chromosome 16

Invasive lobular carcinoma