Pathology of female Genitalia 1: Vulva, Vagina, Cervix Uteri Flashcards
What are the four most common classifications of Vulval diseases
- Cysts
- Non-neoplastic epithelial disorders
- Infection/inflammatory conditions
- Neoplasms
Which cyst of the vulva has the most clinical importance?
Bartholin’s Cyst
How does a cyst of Bartholin’s Gland form?
This happens when the duct is occluded and fluid builds up within the gland.
Infection leads to abscess formation
How is a cyst of Bartholin’s Gland treated?
It is excised and left permanently open by a procedure called- Marsupialization
What are the symptoms of a cyst of Bartholin gland
pain and local discomfort
What is HPV
Human Papilloma Virus is a small DNA virus that can be classified as low risk or high risk types
List the low risk HPV serotypes
6 and 11
What clinical features are seen in the low-risk HPV serotypes?
Benign warts
List the high-risk HPV serotypes
16 and 18
What clinical features are observed in the high-risk HPV serotypes?
Cervical Cancer
What are the features of HPV infected epithelium cells
Koilocytosis: low grade squamous intra-epithelial lesion
- perinuclear halo
- hyperchromatic “raisin like nucleus”
- bi or multi-nucleated
Genital Warts are scientifically known as
Condylomata Acuminata
Genital Warts caused by HPV types 6/11 are classified as low grade lesions also given the abbreviation
CIN 1 (LSIL)
Cervical intraepithelial neoplasia 1 (low-grade squamous intraepithelial lesion)
Describe the progression of low-grade HPV
The viral DNA does not integrate into host genome .
It exists as free extrachromosomal forms within the nucleus
HPV types 16/18 are high grade lesions and are classified as what grade cervical intraepithelial neoplasia
Grade ii and iii
High-grade squamous intraepithelial lesions
Describe the progression of High grade HPV
The virus integrates its DNA in the host cell genome of the vulva/cervix
How does high-grade HPV develop into cancer
1) Viral DNA replication independent of host DNA
2) disturbs HPV E2 gene
3) E2 gene down regulation of E6 and E 7 lost
4) Activate cyclin E Inc. cell proliferation
(E6 and E7 genes block host tumour suppressor proteins p53 and RB1 in host cells- increasing tumour cell production)
List three examples of benign neoplasms that affect the vulva
- Skin adnexal tumours
- haemangiomas
- leiomyomas
Describe the appearance of anogenital warts
Verrucous (wart-like)
Papillomatous (benign) lesions
Describe the histology of anogenital warts
stratified squamous epithelium on vascular connective tissue stalks
True or False
HPV Condylomata Acuminata is pre malignant
False
it is NOT pre malignant
Malignant Neoplasms of the viulva account for what percentage of all genital cancers
3% (not common)
Majority of malignant neoplasms of the vulva are what type of carcinoma
Squamous Cell Carcinoma
What are the three classifications of Vulval Intraepithelial Neoplasms
VIN 1 - lower 1/3
(mild dysplasia)
VIN ii - lower 2/3
(mod dysplasia)
VIN iii- >lower 2/3 (severe dysplasia)
Majority of VIN III lesions occur in what age group
40-60years
Vulval intraepithelial neoplasia type iii is most commonly associated with what HPV serotype
High grade - 16
What is the gross appearance of Vulval Intraepithelial Neoplasia III
Leucoplakia
single or multiple white patches or plaques
What pathology accounts for >90% of invasive vulval malignancies
Invasive squamous cell carcinoma
What age group is invasive squamous cell carcinoma seen in
post menopausal
Describe the tumours seen in Invasive Squamous cell carcinoma
Slow growing
destructive
ulcerative
may be multifocal
What is the most common metastatic site for invasive squamous cell carcinoma
Inguinal lymph nodes
What is the treatment for vulval invasive squamous cell carcinoma
Sugical +/- radiotherapy
What is the estimated prognosis for a patient with vulva invasive squamous cell carcinoma with inguinal metastases
5-year survival
90% of primary vaginal malignancies are…
Squamous cell carcinoma
(Most vaginal malignancies are an extension from cervical squamous cell cancers)
What are the three main pathologies of the cervix uteri?
Inflammation
Polyps
Carcinoma
Cervical cancer is the ….. most common cancer in women in the world
4th
Cervical cancer is the ….. most common cancer in women in Jamaica
2nd
List 7 risk factors for cervical cancer
- early stage first coitus
- multiple sex partners
- multiparity
- low socio-economic status
-History of STD’s
-Cigarette smoking
-Immunosuppression
Where in terms of histology does cervical cancer begin
at the Squamocolumnar transformation zone
What is the grading system used for Cervical Carcinoma
Cervical intraepithelial neoplasia (CIN) I- mild
CIN II- moderate
CIN III- severe
Based on the Bethesda Grading system what CIN grade is a LSIL (low grade squamous intraepithelial lesion)
CIN I
Based on the Bethesda Grading System what CIN grade is a HSIL (high grade squamous intraepithelial lesion)
CIN II and III
Describe the histology of Invasive Squamous Cell Carcinoma in the cervix
polypoid, papillary, nodular, ulcerating
Invasive Squamous Cell Carcinoma locally invades which structures
- vagina
- parametrium
- bladder
- rectum
What is the most often cause of death in invasive squamous cell carcinoma of the cervix
Uraemia
How many stages of cervical cancer are there and name them
7
Stage 0
Stage I
Stage Ia
Stage Ib
Stage II
Stage III
Stage IV
Describe Stage O Cervical Ca
Cervical Intraepithelium Neoplasm III CIN III
Describe Stage 1 Cervical Ca
Confined to the cervix
Describe stage 1a of Cervical Ca
Microinvasion
Describe stage 1b of Cervical CA
Invasive (frankly)
Describe STage II of Cervical Ca
Upper 2/3 of vagina is involved
Describe Stage III of cervical Ca
lower 2/3 of vagina involved and pelvic wall
Describe Stage IV of cervical ca
extends to pelvis, bladder, rectum
What is the treatment for Stage o Cervical Ca
remove via lasertherapy, cryoRx
What is the recommended treatment for Stage 1 a Cervical Ca
Total Hysterectomy
What is the recommended treatment for Stage 1b Cervical CA
Radical hysterectomy with radiotherapy
What is the recommended treatment for Stage 1b to Stage IV CA
RAdiotherapy
WHat is the prognosis for a patient with stage I Cervical Ca with negative node infiltration
90% 5yr survival
WHat is the screeing method for Cervical Ca
Pap Smear
Describe the procedure done in a pap smear
Cervix is scraped with Ayre’s spatula
Smeared on a Slide
Stained
Examined