Female Genital Tract Flashcards
What is Trichomonas?
large flagellated protoza, transmitted sexually
What is the gross pathology of Trichomonas?
cervical and vaginal mucosa is covered in yellow/green/gray frothy discharge; strawberry cervix
Who are prone to get candida infxns
DM, Pregnancy, OCP users. This is NOT sexually transmitted
What are clinical presentation of a trichomonas infxn
pruritus, malodorous, dyspareunia, dysuria
What is the gross pathology of candida
Thrush; cottage-cheese vagina –> white exudate forming small plaques on muscoal surfaces
what is the micro patholgoy of candida infxn
fungus doesn’t penetrate epithelium; submucosa is chronically inflamed; branched hyphae on KOH
Where can HSV be latent
sacral ganglion and trigeminal ganglion
What is the gross pathology of HSV
painful vesicles on vulva, vagina, and cervix –> erodes into painful ulcers
What is the micro pathology of HSV
enlarged multinucleated cells w/ nuclear inclusions seens w/ Tzanck smear
What can Chlamydia cause?
cervicitis, endometritis, salpingo-oophoritis
What can gonorrhea cause?
skene gland adenitis, endometritis, salpingitis
What are the most common STDs in USA
HPV, HSV, GC, Syphilis
What are common non-STIs
C. Albicans, Actinomyces, Mycobacterium TB
What are the 2 etiologies for a pelvic inflammatory disease
- Ascending inflammatory polymicrobial infxn
2. primary endometrial infxn
What are common bugs that cause PID from an ascending infxn
GC, CT, Mycoplasm
Enteric Bacteria
Streptococci, Staphylcocci in postpartum setting
Wha tis the most common site of the initial inflammation of a GC infxn
Periurethral/perivaginal glands – Bartholin Glands
What is the most common and most severe infxn in women
PID
How does GC cause PID
- it travels up to the fallopian tubes and causes Acute cervicitis –> endomitritis –> supparrative salpingitis
- tubes then fill w/ pus (pyosalpinx) –> chronic follicular salpingitis –> hydropsalpinx –> fused fimbfria and tube strictures form ( can cause infertility)
- The inflammation spills from the fimbriated end of the tube onto ovary (acute salpingo-oophoritis–> Tube- ovarian abscess)
How do polymicrobial infxns causes PID
they spread via lymphatics or venous bloos, there is less contact spread via mucosa and more involvement of deeper layers
What is the pathology of GC infxn
increased mucosal involvement w/ congestion of PMNs, lymphocytes, plasma cells –> necrotic debris/fibrous tissue
What is the pathology of a polymicrobial infxn
signs of inflammations in deeper layers; less mucosal involvement
What are some complications of PID (mainly GC)
Peritonitis, adhesions/fibrous bands –> bowel obstruction
Sepsis –> arthritis, meningitis, endocarditiis
Infertility (from adhesions and strictures)
Why does HPB affect the cervix?
1 the squamocolumnar junctions at cervix presents physiologic metaplasia w/ immature metaplastic squamous cells that are susceptible to HPV
When does a cancer usually arise from an HPV infxn
when the HPV is integrated into host DNA
What effects do E6 and E7 have on host cells
- E6 degrades p53 via ubiquitin dependent proteolysis
- E7 inactivates Rb
* this results in increased p16INK4a and increased Cyclin E = increases lifespan of epithelial cells –> koilocytic changes –> condyloma or cancer can occur
how can you distinguish btwn the endocervix and the vagina pathologically
Endocervix – blood vessels are more prominent
What is the gross pathology of condyloma acuminata
fungating/exophytic lesions w/ bizarre vessels and hemorrhage
What is the microscopic pathology of the spectrum of CIN?
- CIN 1 - dysplasia limited to basal layer only
- CIN 2 - dysplasia in lower 1/3 and middle 1/3; superficiallt there is still epithelial differentiation
- CIN 3 - dysplasia in all layers + little epithelial differentiation
- CIS - complete dysplasia w/ no epithelial differentiation
What immunostain can you do to look at the mitotic activity for CIN
Ki67
How can you dx CIN/CIS
Schiller Test
What does the Schiller test do
- applying acetic acid will reveal abnormal mucosa - shows dysplastic cells
- applying iodine turns normal cells brown
What are some features of CIN
maturation arrest, blurred/missing distinction of basal cell layer, loss of cellular orientation, polarity, increased N:C ratio, hyperchromatic epithelium
What is the spectrum of HPV related neoplasm
- CIN 1 : mild dysplasia; large cells w/ bi/multinucleated cells
- CIN 2 : moderate dysplasia; higher N:C ratio
- CIN 3: severe dysplasia; small cells; very high N:C ratio
- Carcinoma in situ
* CIN 1 = LSIL
* * CIN 2+3+CIS = HSIL
Where are various HPV’s found in a cell
- 6 and 11 = episomally
- 16 and 18 = integrated into host DNA
What are the risk factors for CIN?
- 2/3 of graduating college women are HPV+
1. persistent HPV 16/18 infxn
2. Young age of first intercourse
3. OCP
4. ISP
5. HLA subtypes
6. Multiple sexual partners
7. Smoking
What are precancerous lesions to cervical squamous cell carcinoma
CIN 3, CIS, HSIL