Clinical Integration VIII Flashcards
75% of prostatic cancers are associated with elevated..?
serum PSA (prostate specific antigen)
What is PSA?
organ specific
not malignancy specfic
With what conditions is PSA high?
BPH prostatitis infarction following ejaculation DRE exercise biopsy
what measures should be used to diagnose prostate cancer?
DRE
PSA
biopsy
what is the problems with the cancerous lesions in the prostate gland?
they are not close to urethra (unlike the BPH), so you don’t get symptoms for a while…
what site is most BPH originate?
mucosal glands
submucosal glands
closer to urethra
where is most prostatic cancer found?
in the main prostate glands
far away from urethra
what happens to the columnar cells of the endocervix?
they undergo metaplastic changes to become more resilient cells of the ectocervix
what can happen to the endocervix metaplsia under persistent stress?
dysplasia and lead to cancer - HPV
what type of neoplasm is HPV?
cervical intraepithelial neoplasm (CIN)
what does HPV infect?
immature basal cells of squamous epithelium
or
metaplastic squamous cells at the squamocolumnar junction
HPV cannot infect mature cells!
characteristics of CIN?
asymptomatic
if dysplasia continues -> squamous cell carcinoma - because cancer is within epithelium
what are risk factors for cervical cancer?
- number of lifetime partners
- young age - age 20-24 ish
- tobacco use - increase risk by 2x
- BC pill more than 5 yrs.
- weak immune system
what are chaacteristics of leiomyoma/fibroid
well circumscribed’
does not infiltrate surrounding tissue
histology looks normal
where are leiomyomas usually found?
uterine myometrium
