Premalignant + malignant disease of lower genital tract Flashcards
What are the high and low risk HPVs
High risk 16+18
Low risk 6+13
Part of quadrivalent vaccine
What is the precancerous state of cervix called?
And what are the grades?
Cervical intraepithelial neoplasia
1-3 2 and 3 are considered HIGH GRADE
What is the correlation between cytology and CIN grade
There’s some degree of relationship between cytological grade and CIN grade
What is the UK’s HPV screening programme
All women with cervix are screened between 25-64 every 3-5 years
If screen picks up ‘high risk HPV’ then they do cytology
If positive refer to colposcopy
If negative refer through normal pathway
HPV stains
Acetic acid - stains cells with increased cell turnover white
Iodine - stains normal cells, abnormal cells are unstained
How does CIN staging in colposcopy work
If low grade then come back in 6 months for colopscopy and cytology
If high grade treat there excision or ablation
Mx of CIN
CIN 1 - repeat smear in 1 year CIN2,3 - LLETZ or cone biopsy Surgical - LLETZ - Cone biopsy (need to be under GA) Cold coagulopathy Do test of cure after 6 months if negative see in 3 years If positive do colposcopy and high risk HPV again
Presentation of cervical cancer
Bleeding: post-coital, intermenstrual, PMB Advanced disease Anaemia Incontinnece - vesicovaginal fistula anaemia Ureteric obstruction
Types of cervical cancer
SCC (70%)
adenocarcinoma - precursor is CIN
Spread of cervical ca
parametrium, rectum, vagina, bladder
mets - pelvic + para-aortic nodes
lungs and liver
What staging is used
FIGO
Principles of cervical ca mx
If tumour is small take out
If tumour is 2-4 radio is preferred (as disease has spread and there are problems with fertility)
Two forms of radio for cervical ca
External beam Internal beam (selenium rods)
Vulval tumours
90% SCC
rest BCC, malignant melanoma, adenocarcinoma of Bartholin’s gland
What are the two types of SCC vulval cancers
HPV associated - (young women) these start as vulval intraepithelial neoplasia
non-HPV associated - (old women) associated with lichen sclerosus