Prostate and Testicular Cancer Flashcards
What is the epidemiology of prostate cancer?
Commonest cancer diagnosed in men
45% of new cases are >70 yrs
14% of cancer deaths in men - 2nd commonest
Economic burden - £800million/ year
Describe prostate mortality in the UK
> 12000 deaths a year
Highest in men aged over 90 years
75% of deaths occur in men over 75 years
What are some risk factors for prostate cancer?
Age, race/ ethnicity - African or afro-Caribbean highest risk, geography, FH - first degree relative, HPC1, BRCA1+2 and lynch syndrome, obesity, and diet
Describe presentation and diagnosis with prostate cancer
80% are localised
Mostly asymptomatic and diagnosed through opportunistic PSA testing (prostate specific not cancer specific)
What are some of the presenting symptoms of localised prostate cancer?
Weak stream, hesitancy, sensation of incomplete emptying, frequency, urgency, urge incontinence and UTI
What are some of presenting symptoms in locally invasive prostate cancer?
Haematuria, perineal and suprapubic pain, impotence, incontinence, loin pain or anuria, renal failure, haemospermia, and rectal symptoms
What are some symptoms for metastatic prostate cancer?
Bone pain or sciatica, paraplegia secondary to spinal cord compression, lymph node enlargement, lymphoedema and loin pain or anuria
What is the commonest mode of presentation for prostate cancer?
Asymptomatic - incidentally noted
What is PSA?
Kallikrein serine protease - liquifies semen
Produced by glands of prostate - may leak into serum
Levels increase with age
What is the normal level of PSA?
0-4ug/ml
What are age specific ranges for PSA?
> 50 years - 2.5 upper limit
50-60 years - 3.5 upper limit
60-70 years - 4.5 upper limit
70 years - 6.5 upper limit
What causes a transient rise in PSA levels?
UTI, chronic prostatitis, instrumentation (catheterisation), physiological (ejaculation) and recent urological procedure
What causes a persistent rise in PSA levels?
BPH and prostate cancer
How can transient vs persistent rise in PSA be differentiated?
Recheck PSA at least in 3 weeks
Half life of PSA is 2.2 days
Describe the probability of cancer based on PSA
0-1 - 5%
1-2.5 - 15%
2.5-4 - 25%
4-10 - 40%
>10 - 70%
What is a summary of diagnostic work-up?
Serum PSA estimation
Digital rectal exam
Pre-biopsy prostate mpMRI
Biopsy - TRUS guided or MRI fusion targeted
Additional staging
What is the screening for prostate cancer?
Do not need national screening programme but have Ad-hoc PSA testing
What is grading an assessment of?
Aggressiveness, based on histological differentiation - biopsy samples are needed
What is staging an assessment of?
Spread, based on clinical (PSA and DRE) and radiological assessment
What is grading for prostate cancer based on?
Gleason sum score
What can staging for prostate cancer be classified into?
Clinical staging system
TNM staging
Describe Gleason grading for prostate cancer
Pathologist classifies grade of prostate cancer
Score 3-5 well to poor differentiated
Summated to give SUM score
Most common + second most common