Repro Flashcards
What is the SHH gene responsible for? What can mutation cause?
- Anterior posterior patterning at limb buds
- Holoprosencephaly
What is the WNT7 gene responsible for?
Distal limb development
Role of fibroblast growth factor in development? Mutation?
Limb lengthening: mutation can cause achondroplasia
What do mutations in HOX genes cause?
Synpolydactyly: fingers /toes in wrong place
- Code for DNA binding TF
- Vitamin A dysregulates HOX in pregnancy
What is egg arrested in before fertilization?
Metaphase of meiosis II
What does the trophoblast become?
The placenta
Vitamin deficiency causing neural tube defects?
Folate
What do alar and basal plate give rise to?
Alar: sensory neurons (dorsal)
Basal: motor neurons (ventral)
When is embryo most susceptible to teratogens?
Embryonic period: weeks 3 - 8
When do heart and limb development begin?
Week 4: 4 chambers, 4 limbs
When does gender development begin?
Week ten
Derivatives of ectoderm and what do they become?
- Surface ectoderm: skin
- Neuroectoderm: Brain / spinal cord
- Neural crest: PNS
What are melanocytes derived from?
Neural crest
What does the mesoderm become?
- Muscle, bone, connective tissue, CV, lymphatics, blood, kidneys, spleen
What does endoderm become?
Gut, lungs, liver, pancreas, gallbladder, thyroid, parathyroid
What is agenesis?
Absent organ from absence of primordial tissue
What is aplasia?
Absent organ with present primordial tissue
Difference between deformation and malformation
Deform: extrinsic interruption after embryonic period
Malform: internal interruption during embryonic (3-8 weeks)
What do aminoglycosides cause?
Ototoxicity
What does cocaine cause?
Placental abruption
What does Li cause?
Ebstein anomaly: atrialization of right ventricle
Heparin or warfarin in pregnancy?
Heparin: does not cross placenta
Presentation of fetal alcohol syndrome?
- Small, widely spaced eyes
- Thin upper lip
- Smooth philtrum
* ***Caused by failure of cell migration
What does # chorions equal?
Number of placentas
Most common number of amnions / chorions in twins?
Monochorionic, diamniotic
What cells release Bhcg?
Syncytiotrophoblasts
What are the maternal and fetal components of placenta?
Maternal: decidua basalis
Fetal: Cytotrophoblasts/syncytiotrophoblasts
What does the allantois become?
Urachus: urine out belly button if does not close
What does the vitelline duct do?
Connect yolk sac to midgut lumen: poop out belly button if does not close
What doe the allantois and the umbilical arteries become?
Arteries: MediaL umbilical ligament
Allantois: Median umbilical ligament
What does 1st arch become?
Maxillary artery
What does 2nd arch become?
Stapedial and hyoid arteries
What does 3rd arch become?
Common and proximal internal carotid
What does fourth arch become?
Left: aortic arch
Right: Proximal right subclavian
What does 5th arch become?
Nothing
What does 6th arch become?
Ductus arteriosus and proximal pulmonary artery
What is a lump on side of neck that does not move when swallowing?
Branchial cleft cyst: from persistent cervical sinus derived from 2 - 4th cleft
What muscles does CN VII innervates?
Muscles of facial expression
What innervates muscles of mastication?
vIII
Pouches involved in digeorge syndrome?
III and IV as they develop into thyroids and parathyroids
Mutation seen in digeorge?
22q.11 deletion
What does 22q.11 deletion cause?
Digeorge
What results in cleft lip?
Failure of fusion of maxillary and medial nasal processes
What is the default genital pathway?
Female with persistence of paramesonephric / mullerian ducts
What do the mullerian ducts become?
Fallopian tubes, uterus, upper 1/3 vagina
What allows for male development?
- SRY gene on y chromosome producing testis determining factor
- Allows testis to develop creating sertoli and leydig cells
What secretes mullerian inhibitory factor?
Sertoli cells
What secretes testosterone?
Leydic cells to promote wolffian growth
What makes DHT?
5-alpha reductase makes this more potent testosterone from testosterone
What is DHT responsible for?
Prostate and male external structures
What do the urogenital folds become?
men: ventral shaft penis
women: labia minora
What is hypospadias?
Urethral opening on underside of penis
What is epispadias?
Urethral opening on top of penis
What happens when tunica vaginalis fails to fuse in man?
Risk of indirect hernia / hydrocele
Venous drainage of left/right ovary/testis?
Left: gonadal vein, renal vein, IVC
Right: Gonadal vein, IVC
Which side is varicocele more common on?
Left: left gonadal - > renal - > IVC
Cancer leading to varicocele?
RCC
Where do the ovaries and testis drain lymphatically?
Lumbar / Para aortic lymph nodes
Where does lymph from distal vagina, vulva, and scrotum drain?
Superficial inguinal nodes
What lymphatics do the clitoris and glans penis drain do?
Deep inguinal nodes
Where does proximal 2/3 vagina drain?
Obturator, external iliac, and hypogastric nodes
Consideration of cardinal ligament in hysterectomy?
Need to ligate cardinal ligament to prevent bleeding but need to be careful not to ligate ureter as it is extremely close
What vessels are in round ligament?
None
Pudendal nerve roots?
S2 - S4
What does the ureter pass posterior to?
Man: vas deferans
Woman: uterine artery
What do ovarian arteries arise from? Uterine?
Ovarian: directly from abdominal aorta
Uterine: Internal illiac
What needs to be ligated in hysterectomy as the suspensory ligament is cut?
Ovarian vessels
Where are ciliated columnar cells found in female tract?
Fallopian tubes
Are meta and dysplasia reversible?
Yes: neoplasia is NOT reversible
What of sperm?
"Seven UP" Seminiferous tubules Epididymis Vas def Ejaculatory ducts Nothing Urethra Penis
Where do sperm mature / are stored?
Epididymis: reach full maturity in vagina with help of secretions
What is ligated in male sterilization?
Vas def
What is diagnosis for present, non motile sperm?
Kartagener
- Situs inversus
- Chronic respiratory infx
- Infertility
- Mutation in dynein arm for flagella
What fracture damages posterior urethra?
Pelvic
Where does urine leak in urethral injury?
Retropubic space
What does NO release cause in penis?
- Increased cGMP relaxing smooth muscle
- Increases blood flow = erection
Role of phosphodiesterase inhibitors in erection?
Stop breakdown on cGMP allowing erection to persist
Where does spermatogenesis occur?
Seminiferous tubules - takes 9 weeks
Where are spermatogonia found?
Line seminiferous tubules maintaining gene pool
Function of sertoli cells?
- Inhibin and androgen binding protein
- Blood testis barrier
- Protect from autoimmune attack - Support and nourishment
- Mullerian inhibitory factor
Function of leydig cells?
- Testosterone production
What does inhibin do?
Release by sertoli stopping FSH secretion
What do FSH and LH stimulate in males?
LH: Leydig
FSH: Sertoli
Negative feedback of testosterone?
LH
Sertoli or leydig cells impacted by temperature?
- Sertoli: sperm count will drop
- Leydig cells produces normal testosterone with increased temp
What is inferior to spermatic artery?
Ureter
Where do ovarian vessels lie?
Suspensory ligament
Where do uterine vessels lie?
Cardinal ligament
Impact of LH in women?
Acts on theca converting cholesterol to testosterone via desmolase
Function of FSH in women?
On granulosa cells to convert androgen to estrogen via aromatose
Functions of progesterone?
- Increasing endometrial secretions / spiral artery development
- Decreased myometrial excitability
- Negative FSH / LH feedback
- Maintenance of pregnancy
Where are eggs arrested between birth and pregnancy?
Prophase of meiosis 1
Where are secondary oocytes arrested?
Metaphase II until fertilization
What does rising estrogen cause increase in?
LH surge causing ovulation
What divides follicular and luteal phase?
Ovulation
Length of luteal phase?
Always 14 days, follicular phase can vary
Hormones high in follicular and luteal phase?
Follicular: estrogen
Luteal: progesterone
Most common cause of irregular / heavy uterine bleeding?
Anovulation: unopposed estrogen continues to build up endometrium
What is happening with lactation during pregnancy?
- Prog and E2 are increasing breast growth however they inhibit prolactin
What regulates prolactin release from anterior pituitary?
Dopamine
Function of HCG?
Keep corpeus luteum functioning to secrete progesterone until placenta can create its own
Causes of excessively high HCG?
- Hydatidiform mole
- Choriocarcinoma
- Multiple gestations
What is a good apgar score?
> 7,
Which immunoglobulin can cross placenta?
IgG
- IgA is what is found in breast milk
Vitamin deficiency if exclusively breast fed?
D
FHS, LH, GNRH levels in menopause?
Elevated from loss of estrogen negative feedback
***FSH is higher than LH
What organs does DHT stimulate?
Penis, Scrotum, Prostate
- Testosterone responsible for internal organs
What does 5-a-reductase do?
Convert testosterone to DHT
What does finasteride do?
Inhibits 5-a-reductase
What do spermatids become?
Mature spermatozoa - vira spermiogenesis
What leads to condyloma acuminatum?
6 / 11
Which are the low / high risk HPVs?
High: 16, 18, 31, 33
Low: 6, 11
***Based on DNA sequencing
What is lichen sclerosis?
- Thinning of epidermis and fibrosis of dermis
- Presents with leukoplakia with parchment like skin
- Benign with small risk of SCC
What is lichen simplex chronicus?
- Hyperplasia of vulval epithelium
- Leukoplakia w/ thick leathery skin
- From chronic irritation
- No risk of cancer
2 etiologies of vulvar carcinoma?
- HPV - 16, 18, 31, 33 - younger females
2. Non HPV - lichen sclerosis - older females
What is extramammary paget’s?
- Erythematous, itchy ulcerated skin on vulva
- Carcinoma in situ with NO underlying carcinoma
- **In breast means there IS cancer
How to tell pagets from melanoma?
Paget’s: PAS +, Keratin +, S100 -
Melanoma: PAS - / Keratin - / S100 +
What is the vagina derived from?
Upper 2/3: Mullerian duct
Lower 1/3: urogenital sinus
What happens to vaginal lining in development?
Upper 2/3 from mullerian duct is originally columnar that is replaced by squamous migrating up from lower 1/3
What is adenosis? What is the risk?
- Persistence of columnar cells up upper 2/3 vagina
- Normally replaced by Squamous
- Increased risk from DES in utero
- Has increased risk of clear cell adenocarcinoma
What does DES lead to increased risk in?
- Adenosis progressing to clear cell adenocarcinoma
What is risk with DES in mother?
Breast cancer
Presentation of embryonal rhabdomyosarcoma?
- Bleeding grape like mass protruding from vagina or penis
- Usually seen
What is the following histology indicative of:
- Cytoplasmic cross striations
- Positive IHC staining for desmin and myogen
Rhabdomyoblast cells see in rhabdomyocarcoma
Where do upper and lower vagina drain to?
Upper 2/3: illiac nodes
Lower 1/3: Inguinal nodes
Mutations involved in high risk HPV?
E6: knocks out p53
E7: knocks out retinoblastoma
What does P53 do?
- Regulate G1 - S phase in cell cycle
- Makes sure any damage is repaired before progress is allowed
What happens when p53 doesnt want cell to progress?
- Calls in Bax
- Bax knocks out BLC2 which was stabilizing mitochondrial membrane keeping cytochrome C inside
- Cytochrome C activates apoptosis killing cell
What does RB do?
- Holds E2F: when RB is phosphorylated it releases it
allowing cell cycle to progress
Difference between CIS and dysplasia?
CIS is not reversible and will soon invade
Risk factors for cervical carcinoma?
- HPV: most important
- Smoking
- Immunodeficiency: aids defining illness
What types of cancer does HPV cause?
- SCC
2. Adenocarcinoma
Where does cervical cancer invade?
Through anterior uterine wall into bladder causing hydronephrosis
What is next step after abnormal pap?
Confirmatory colposcopy and biopsy
2 limitations of pap?
- Does Not screen for adenocarcinoma
2. Not effective if you dont wipe transformation zone
What does HPV vaccination cover?
- 6, 11, 16, 18
- Lasts 5 years
- Still need paps
Hormonal impact on endometrium?
Grows with estrogen, prepares with progesterone, sheds with removal of P
What is asherman syndrome?
- Secondary amenorrhea from loss of basalis and scarring
- Usually from over aggressive D and C
What is regenerative layer of endometrium?
Basalis: grows to produce functionalis which sheds with menstruation
What is anovulatory cycle?
- Go through proliferative phase by no ovulation occurs
- No secretory phase will occur
- Leads to dysfunctional uterine bleeding in menarche and menopause
What is required for diagnosis of chronic endometritis?
Plasma cell on histology
Which drug can cause endometrial polyp?
Tamoxifen: anti estrogen in breast but pro in uterus
What is adenomyosis?
Endometriosis that has involved the myometrium
Risk of endometriosis?
Cancer at the site it has seeded
What is endometrial hyperplasia?
- Hyperplasia of endometrial glands relative to stroma
due to unopposed estrogen - Presents as postmenopausal uterine bleeding
Most important predictor for progression of endometrial hyperplasia to cancer?
Cellular atypia
2 pathways of endometrial carcinoma? Histology? Cause?
- Hyperplasia: endometrioid histology seen
- Sporadic: serous / papillary histology seen
- P53 mutations
- Psammoma bodies can be seen
2 types of cancer with psammoma bodies?
- Mesothelioma
- Sporadic endometrial carcinoma
- Papillary thyroid cancer
- Meningioma
What is a leiomyoma?
- Benign tumor of myometrial smooth muscle
- MULTIPLE, 2hite whorled masses
- From estrogen exposure
What are multiple, white whorley masses indicative of?
Leiomyoma - benign process
Difference in appearance between leiomyoma and leiomyosarcoma?
Leiomyoma: multiple, white whorled masses
- Pre menopause
Leiomyosarcoma: single mass with hemorrhage and necrosis
- Post menopause
Most common presentation of leiomyoma?
Asymptomatic
Do leiomyomas become sarcomas?
No, the sarcoma arises de novo
What does a follicle consist of?
Oocyte surrounded by granulosa and theca cells
Hormone impact on follicle?
- LH causes theca to make androgen
- FSH makes granulosa turn andro to estrodiol
- Estradiol allows oocyte to mature
What happens if a follicle degenerates?
Becomes a follicular cyst
Hormonal characteristic of PCOD?
LH:FSH > 2
Why is FSH low in PCOD?
- Androgens are being converted to estrogens in fat by aromatase
- This estrione goes back to pituitary shutting down FHS
- Follicles begin to degenerate as low FSH does not allow granulosa cells to make estradiol
Classic presentation of PCOD?
- Hirsutism
- Obesity
- Infertility
- Oligomenorrhea
- Insulin resistance
- Risk of endometrial carcinoma from high circulating estrone
What do germ cell tumors derive from?
Oocyte
What do sex cord stromal tumors derive from?
- Granulosa
- Theca
- Fibroblasts
3 categories of ovarian tumor?
- Germ cell
- Sex cord stromal
- Epithelial
What is coelomic epithelium?
Epithelium lining the ovaries
2 most common types of ovarian epithelial tumors?
- Serous
- Mucinous
- Both are usually cystic
What is a cystadenoma?
- Benign ovarian tumor filled with water or mucous
- Single cyst with simple flat lining
- Usually premenopause
What is the following indicative of:
- Complex cysts with thick shaggy lining
- Cystadenocarcinoma: malignant
- Usually postmenopausal
What is BRCA1 risk factor for?
- Breast cancer
2. Serous carcinoma of ovary and fallopian tube
4 types of endothelial ovarian tumors
- Serous
- Mucinous
- Endometrioid
- Brenner tumor
Characteristic of endometrioid ovarian tumor?
- Usually malignant
- Usually from endometriosis
- 15% have endometrial carcinoma as well
Cells in brenner tumor?
Urothelium
What is ovarian tumor with urothelium in it?
Brenner tumor
What is CA-125 a marker for?
- Released by surface epithelial tumors
- Can be used to monitor treatment / recurrence
- **Not useful in screening
Who are germ cell tumors seen in?
Reproductive age
Types of germ cell tumors?
- Cystic teratoma
- Embryonal
- Yolk sac / endodermal sinus tumor
- Dysgerminoma
- Choriocarcinoma
How to tell if cystic teratoma is benign or malignant?
- Immature tissue = malignant
- Often have neuroectoderm - Somatic malignancy = malignant potential
- IE skin tissue in tumor could have squamous cell carcinoma
What is struma ovarii?
- Cystic teratoma of mainly thyroid tissue that can lead to hyperthyroid
What is the following indicative of:
- Large cells with clear cytoplasm and central nuclei
- Elevated LDH
Dysgerminoma
- Looks like an oocyte
Male equivalent of dysgerminoma?
Seminoma
Prognosis for dysgerminoma?
Responsive to radiotherapy
What is the following indicative of:
- Elevated AFP
- Schiller duval bodies - glomeruloid like structures
Yolk sac / endometrial sinus tumor
Tumor often seen in kids?
Yolk sac
Characteristics of endometrial sinus tumor?
- Elevated AFP
- Yolk sac like
- Schiller duval bodies
- Common in kids
Characteristics of choriocarcinoma?
- High BHCG
- Poor chemoresponse
- Tropho / syncytiotrophoblasts without villi
- Small and hemorrhagic with hematogenous spread
- Placental cells are naturally programmed to find vessels
Presentation of granulosa / theca tumor?
- Estrogen production and signs of that excess
Characteristics of sertoli leydig tumor?
- Reinke crystals
- Sertoli cells forming tubules
- Hirsutism and virilization
What are reinke crystals indicative of?
Sertoli leydig tumor
Presentation of ovarian fibroma?
Meigs syndrome:
- Pleural effusion
- Ascites
What is a krukenberg tumor?
- Mucinous carcinoma that spreads to both ovaries
- Usually diffuse gastric carcinoma
Characteristic cell of diffuse gastric carcinoma?
Signet ring cell: nucleus pushed to one side because cell is full of mucus
What causes pseudomyxoma peritonei?
- Mucinous carcinoma of the appendix
- Makes abundant mucus in peritoneum
- Also spreads to ovary
Risk factors for ectopic?
Scarring from:
- PID
- Endometriosis
Causes of spontaneous abortion?
- Chromosomal abnormalities
- Hypercoagulable state
- Congenital infection
- Teratogens
What is placenta previa?
“preview of the placenta”
- Has inserted near the cervical OS
- 3rd trimester bleeding
- Requires C-section so baby doesn’t compress placental blood supply as it moves through canal
What is placental abruption?
- Placenta separates from decidua prior to delivery
- 3rd semester bleeding
- Still birth
What is placenta accreta?
- Direct implantation of placenta into myometrium
- Inability to deliver placenta often resulting in hysterectomy
To what layer does the placenta attach?
Decidua
What is preeclampsia?
Pregnancy induced:
- Hypertension
- Proteinuria
- Edema
* *Caused by problem with placenta vascular interface
What is fibrinoid necrosis of vessels in placenta associated with?
Preecplampsia
What is eclampsia?
- Preeclampsia + seizures
What is HELLP?
Preeclampsia + :
- Hemolysis
- Elevated Liver enzymes
- Low Platelets
- Arises from small thrombi in liver vasculature
What increases risk of SIDs?
- Smoking
- Prematurity
- Sleeping on stomach
What are swollen and edematous villi with proliferation of trophoblasts indicative of?
- Hydatidiform mole
Presentation of mole?
- Uterus larger than should be for date
- BHCG higher than should be for date
- Passage of grape like masses in second trimester: swollen villi
What is snow storm appearance on ultrasound indicative of?
- Mole
Genetic composition of complete v. partial mole?
Complete: 46 chromosomes
Partial: 69 chromosomes
Which mole shows fetal tissue?
Partial
Which mole demonstrates greater villous edema?
Complete
Which mole has greater trophoblastic proliferation?
Complete
Which mole has risk for choriocarcinoma?
Complete
What secretes bHCG?
Syncytiotrophoblasts
How do pathways of choriocarcinoma respond to chemo?
Gestational (mole): well
Germ Cell tumor: poor
Cause of hypospadias?
- Failure of urethral folds to close
- On lower side of penis
Cause and association of hypospadias?
- Abnormal position of genital tubercle
- Associated with bladder exstrophy
What is lymphogranuloma venereum?
- Necrotizing granulomatous inflammation of inguinal lymphatics and lymph nodes
- Caused by chlamydia trachomatis
- Causes fibrosis that can lead to rectal strictures
What bowen’s disease?
CIS in shaft of penis that can lead to SCC
What is cryptorchidism?
Failure of tisticle to descend from abdomen to scrotum
What is the cremasteric reflex and when is it absent?
- Scrotum rises when scrape inner thigh
- Testicular torsion
What is hydrocele associated with?
- Incomplete closure of processus vaginalis
- Blockage of lymphatic drainage
What is a seminoma equivalent to?
Dysgerminoma
How are germ cell tumors divided in males?
- Seminoma
2. Nonseminoma
Characteristics of seminoma?
- Chemo responsive
- Late metastasis
- Large cells with clear cytoplasm and central nuclei
- Can release HCG
- Homogenous mass no hemorrhage or necrosis
Characteristics of male embryonal carcinoma?
- Immature cells that may form glands
- Hemorrhage and necrosis
- Aggressive with hematogenous spread
- Increased AFP / HCG
Most common testicular tumor in kids? What is elevated?
- Yolk sac
- AFP
Which tumor is AFP classically elevated in?
- Yolk sac
Difference between teratoma in males and females?
Benign in females, malignant in males
What to think if testicular mass in > 60yo?
Diffuse large B cell lymphoma
Presentation of acute prostatitis?
- Pain on urination
- Fever
- Chills
What is risk for cancer in BPH?
None
Where does BPH occur?
Periurethral zone of prostate
What is hydronephrosis?
- Dilation of kidney and ureter from backup of fluid
- Can occur in BPH
Where does prostate cancer appear?
- Posterior
- Does not produce urinary symptoms because of this leading to late presentation
What is the grading scale for prostate cancer?
“Gleason grading scale”
- Based solely on architecture with atypia not a factor
Where does prostate cancer like to spread?
- Lumbar spine with osteoblastic metastasis
- Low back pain with increased alk phos
What does alkaline phosphatase indicated?
Osteoblastic activity
What is leuprolide?
GNRH agonist that will shut down HPA decreasing DHT cancer is dependant on
Most common cause of nipple discharge of blood?
Intraductal papilloma
What can a uniformly enlarged uterus be indicative of?
- Molar pregnancy
2. Adenomyosis
Another name for leiomyomas?
Fibroids
Do leiomyomas enlarge the uterus?
Yes but irregularly
What is needed to treat PID?
Coverage of both:
- Gonorrhea: 3rd generation cephalo
- Chlamydia: azythro or doxy
What does tetracycline cause in fetus?
Teeth staining
What does chloramphenicol cause in fetus?
Gray baby syndrome
What doe TMP sulfate cause in babies?
Neural tube defects
What do aminoglycosides cause in fetus?
Ototoxicity
What does valproate cause in pregnancy?
Neural tube defects
Another name for measles and german measles?
Measles: rubeola
German: rubella
Rubella presentation in adult?
Polyarthralgia
Rubella presentation in kid?
- Deaf
- Cataracts
- Heart malformations
What happens to urethral folds in women?
Do not fold forming labia minor - Hypospadias if dont fuse in male
What does low serum AFP mean?
Trisomies
What does elevated AFP mean?
- Neural tube defects
- Ventral wall defects
- Multiple gestations
In utero lab values in downs?
- Low AFP
- Low unconjugated Estriol
- Increased HCG
- Increased inhibin
What causes syphilis?
Treponema pallidum
Diagnosis of syphilis?
Darkfield microscopy
What is given to mimic LH surge in fertility therapy?
HCG
What is menotropin?
Given in fertility therapy to mimic FSH and stimulate follicle
What is the following indicative of:
- Purulent vaginal discharge
- Friable cervix with easy bleeding
Gonococcal cervicitis
Diagnosis of gonorrhea?
DNA amplification
What is cholelithiasis and who is it most common in?
Gallstones: “Fat, fertile, female, forty”
What causes gallstones in pregnant ladies?
Estrogen: cholesterol hypersecretion
Progesterone: gallbladder hypomotility
What is the egg arrested in prior to fertilization?
Metaphase of meiosis II
Where are eggs arrested prior to ovulation?
Prophase Meiosis I
3 ways DS occurs?
- Nondisjunction: trisomy
- Unbalanced translocation
- Mosaicism
What can a germ cell tumor secrete causing signs of hyperthyroid?
HCG has same beta subunit as TSH
What do kegels strengthen?
Levator ani muscle of the pelvic floor
Turners presentation?
- Streak gonad
- Shield chest
- CV abnormalities: bicuspid / coarct
- Webbed neck
- Short stature
- Horseshoe kidney
- Low ears and hairline
Epithelial cells in ovary?
Cuboidal
Where are call exner bodies seen?
Granulosa cell tumors - “cuboidal cells in sheets with gland like structures”
Do you ligate the ovarian ligament or suspensory ovarian ligament?
Suspensory
Where does the milk line run?
From the vulva to the axilla: breast tissue and pathology can hence happen anywhere along this line
What is functional unit of breast?
Terminal duct lobular unit: lobules make milk which drain via duct to nipple
Two layers of epithelium in TDLU?
- Luminal layer: innermost
2. Myoepithelial: muscle squeezing duct to propel milk
Is galactorrhea sign of breast cancer?
No, usually from drugs, prolactinoma, or stimulation
Normal cause of acute mastitis?
Staph aureus during breast feeding
Common cause of periductal mastitis?
- Specialized luminal epithelium requires vit A
- Smoking leads to deficit so cannot maintain leading to squamous metaplasia
- Squamous produces keratin plugging ducts = inflammation
- Leads to mass in subareolar region
Presentation of periductal mastitis?
- Lump in areolar region from keratin block
- Fibrin and fibroblasts released for healing = contraction of nipple as myos pull in
What is mammary duct ectasia?
- Inflammation of wall of subareolar duct = dilation
- Leads to brown / green nipple discharge
- Mass can be felt as well
- **Usually seen in postmenopausal women
What is green brown nipple discharge characteristic of?
- Mammary duct ectasia - mass in postmenopausal women that IS NOT cancerous
Presentation of fat necrosis?
- Mass on exam of calcification on mammogram from saponification and giant cells
Cause of fibrocystic change?
- Rise and fall of progesterone levels over time
What is the most common change in premenopausal women?
- Fibrocystic change with lumpy breast in upper/outer quadrant
What is cystis with blue domed appearance indicative of?
Fibrocystic change
Types of fibrocystic change and risk for cancer?
- Fibrosis, cysts, apocrine metaplasia: 0
- Ductal hyperplasia w/ sclerosing adenosis: 2x
- Often calcified - Atypical hyperplasia: 5x (both breasts)
- Ductal or lobular
* ***Not that these are future risk for cancers not that she currently has them
Apocrine metaplasias risk for cancer?
Zero
What is intraductal papilloma?
- Normal epithelial and myo layers but has formed papillary projection into duct that often bleeds in nipple
- Premenopausal
- **If carcinoma no myoepithelial cells
What is most common tumor in premenopausal women?
Fibroadenoma - benign neoplasm
Characteristics of fibroadenoma?
- Tumor of tissues and glands
- Benign neoplasm in premenopause
- Well circumscribed marble like mass that is estrogen sensitive
- Grow and change in pregnancy, menopause, menstrual cycle
Risk of cancer in fibroadenoma?
None
What is a phyllodes tumor?
- Fibroadenoma with overgrowth of fibrous part in leaf like projections
- *Can be malignant unlike normal fibroadenoma
- Post menopause
Breast common stats in women?
- # 1 cause cancer in women
- #2 cause of death
How is DCIS usually detected?
- Too small for mass
- Calcification on mammogram
Benign breast changes with fat necrosis?
- Fat necrosis (saponification)
2. Sclerosing adenosis (2x risk cancer)
What is paget disease of nipple?
- DCIS that has climbed up duct to nipple
- Presents with nipple ulceration and erythema
- Always underlying carcinoma
Benign cause of nipple retraction?
Periductal mastitis
What is desmoplastic stroma indicative of?
Invasive ductal carcinoma
Epithelial layers indicative of breast cancer?
Normally the TDLU has 2 cell types, in cancer it will only have one
Cancer characterized by cells in dermal lymphatics?
Inflammatory breast cancer
Who is medullary carcinoma of breast more common in?
BRCA1 mutations
What is dyscohesive cells lacking E cadherin indicative of?
LCIS - E cadherin is usually holding the cells together
Treatment of LCIS?
Tamoxifen with close follow up as is a risk factor for invasive carcinoma
Appearance of invasive lobular carcinoma?
- Grow in single file pattern as lack E-cadherin
- DO NOT form duct like structure
Most important factor for breast cancer prognosis?
- Metastasis
* ***Hard to detect so spread to axilla is most important
What is sentinel node biopsy?
- Assesses axillary nodes for spread of breast cancer
- Inject blue dye in breast and follow where it goes
3 predictive factors in breast cancers response to treatment?
- ER - tamoxifen response (antiestrogenic)
- PR - tamoxifen response
- HER2/Neu - trastuzimab
What indicates tumor responsive to trastuzumab?
Her2/neu positive
What indicates tumor responsive to tamoxifen?
ER/PR+
What does BRCA1 put you at first for?
- Invasive medullary breast cancer
- Other breast cancers as well - Ovarian cancer
Mutation in breast cancer in Males?
BRCA2
Klinefelter genotype? Cause?
- 47XXy occurring from non disjunction
- One usually becomes bar body
Presentation of klinefelter?
- Tall
- Long limbs
- Developmental delay - learning and behavior
- Gynecomastia
- Feminine
- Euchenoid body appearance
- Dystrophic seminiferous tubules as sertoli dont make inhibin
- Cryptorchidism and infertility
What causes marfan?
- Defect in fibrillin gene
Serology in klinefelter’s?
- Sertolis not secreting inhibin = increased FSH
- Leydig deficient in testosterone = increased LH
- Increased E : T ratio
Genotype in turner?
45 XO
Turner presentation?
- Short
- Shield chest
- Web neck
- Pre ductal Coarcted / bicuspid aorta
- Ovarian dysgenesis
- Cystic hygroma - neck mass
- Streak ovary: low E, high FSH / LH
* Most common cause primary amenorrhea
Why is turner so short?
Only one copy of SHOX gene which is responsible for long bone growth
Difference in primary and secondary amenorrhea?
Primary: never had period
Secondary: had period then stopped
What is female hermaphrodite? Cause?
- XX genotype
- External external genitalia or male like
- Testosterone exposure of CAH
Why do you have female external sexual characteristics in androgen insensitivity?
Testis produce some estrogen which is now unopposed since body cannot respond to angrogens
What happens in 5-a-reductase deficiency?
- Cannot convert T to DHT
- Abnormal male externals until puberty
- Normal T and maybe increased LH
What is kallmann syndrome?
- Low GNRH from failed migration
- Defect in brain is next to smell center so have anosmia
- Delayed or absent puberty: micro penis
- Lack of secondary characteristics
Difference in bleeding in placenta abrupta and previa?
Abrupta is painful, previa is not
What does double bubble sign indicate?
Duodenal atresia
Hormone ration diagnostic of PCOD?
LH:FHS > 3
Most common cause of anovulation?
PCOS
Marker to monitor ovarian cancer?
Ca-125
What are call exner bodies indicative of?
Granulosa cell tumor
“you need to call your granny”
Presentation of leiomyoma?
- Estrogen sensitive, abnormal bleeding in younger women
- Whorled appearance
- DO NOT move to sarcoma
Treatment for fibroadenoma of breast?
Not malignant, give reassurance
What is elevated placental alk phos indicative of?
Seminoma
What causes insulin resistance in pregnancy?
- HpL: human placental lactogen
- Mother is wanting to increase free glucose for baby and this helps
What does HpL cause?
Increased insulin resistance during pregnancy / gestational diabetes
What is mifepristone?
Progesterone antagonist that can be used in abortion
What is misoprostol?
PGE1 analogs causing cervical softening and uterine contractions that can be used in abortion or to induce pregnancy
Where are the sertoli cells found?
Within the seminifarous tubules
What does inhibin regulate?
- Decreases FSH
- Produced by sertoli cells in seminiferous tubules which are heat sensitive
Clotting factor status in pregnancy?
Increased VII, VIII, X, VwF to prevent bleeding
Protective factors for ovarian cancer?
- Multiparity
- Breast feeding
- Oral contraceptives
Where is narrow high arched palate seen?
Turner
Does adenomyosis lead to infertility and painful sex?
Yes
Blood supply to uterus?
- Uterine arteries off the internal iliac
- If ligated blood flow maintained from collateral circulation from ovarian
Is HSV 2 lesion painful?
Yes - mulitple lesions
Is Syphilis lesion painful?
No - usually single lesion
Common bacteria in septic abortion?
Staph
2 bugs implicated in PID?
- Gonorrhea
2. Chlamydia
How does prostate cancer spread to spine?
Vertebral venous plexus
Artery at risk of being cut in opening rectus abdominus?
Inferior epigastric