Prostate Flashcards
3 zones of prostate and their roles
Central zone: surrounds ejaculatory ducts
Transitional zone: surrounds urethra. Typical zone of BPE change
Peripheral zone: post easily palpated on DRE. Typical zone of inflammation/Ca prostate
Fibromuscular zone/stroma
Tests to do in suspected BPE
abdo exam, DRE, history, bloods, urine dip, flow rate, flexible cystoscopy, USS
Conservative management for BPH
Lifestyle modification: no caffeine and drinking at night. Double void
Medical management of BPH
Alpha blockers: relax smooth mm in prostate
SE: hypotension, ED, retrograde ejaculation, headache, nasal congestion
5AR inhibitors: inhibit DHT production:
SE: decreased libido, ED, teratogenicity
long term cathetirsation
Surgical management of BPH
Trans urethral resection of prostate
URoloft, aqua-ablation
Prostate cancer presentation
LUTS
haematuria
signs of advanced disease: bony pain, cancer cachexia, lymphoedema, cord compression
Diagnosis of prostate cancer
PSA
DRE
mpMRI
Biopsy
Bone scan
How is graiding of prostate cancer done
Gleason score: biopsy gives idea of if the cells look normal. Higher score = high risk
PIRADS/Likert score: >4 clinically significant. This is done. by MRI
Function of GnRH agonists in prostate cancer treatment
Prevent pituitary from secreting LH
Risk of androgen flare which will make symptoms worse initially therefore given anti-androgen therapy initially
Function of GnRH antagonists in prostate cancer treatment
Prevent LNRH from binding to its receptors in the pituitary gland
Do not cause androgen flare
Which prostate cancer treatment causes androgen flare
LNRH agonists / GnRH agonists
Function of anti-androgen therapy
Stops testosterone reaching cancer cells
What Is prostatitis
Presence of inflammatory cells in glandular epithelium and lumens of the prostate
It is an ascending urethral infection
commonest bacteria causing prostatitis
E coli, enterobacter, proteus, Neisseria gonorrhea, chlamydia
Prostatitis presentation
Dysuria, frequency, urgency, nocturne, pyrexia
Urethral discharge
Lower abdo. lower back pain