Cancer Flashcards
What type of cancer makes up the majority of cervical cancers?
Squamous cell carcinoma
What is HPV?
Human papilloma virus
DNA virus
What is a persons lifetime risk of coming into contact with HPV?
80%
What strains of HPV cause cervical cancer?
16/18
CIN is the precursor lesion of invasive cancer, how is it graded?
Via biopsy:
CIN1: dyskaryosis in basal 1/3rd
CIN2: dyskaryosis in 2/3rds of epithelium
CIN3: full thickness dyskaryosis
Why is CIN so important?
progresses to cancer but begins young
can take 20 years for CIN3 to develop into an invasive cancer
When does cervical screening start?
age 25+
How often do people have smear tests?
age 25-49; every 3 years
age 50-64: every 5 years
HIV, transplant patients: annual
Based on results of smear (cytology), women may be asked to return for repeat smear/testing. If inflammation is seen when will they be seen again?
3 months
Based on results of smear (cytology), women may be asked to return for repeat smear/testing. If mild dyskaryosis is seen when will they be seen again?
6 months
Based on results of smear (cytology), women may be asked to return for repeat smear/testing. If moderate dyskaryosis is seen when will they be seen again?
refer to colposcopy
Based on results of smear (cytology), women may be asked to return for repeat smear/testing. If severe dyskaryosis is seen when will they be seen again?
refer to colposcopy (4 weeks)
Based on results of smear (cytology), women may be asked to return for repeat smear/testing. If invasive CIS is seen when will they be seen again?
urgent referral to colposcopy (2 weeks)
What is colposcopy?
looking at cervix, with speculum and microscope
allows for diagnosis, biopsy and management
Lesions are identified how in colposcopy?
Stains -
acetic acid - turns abnormal areas white
iodine - normal areas turn brown