Prostate + testicular cancer Flashcards
Prostate cancer primarily affects what age group
> 50
Risk factors of prostate cancer (4)
Age >50
High fat diet
Black ethnicity
Family history of prostate cancer
What zone of the prostate do prostate cancers usually arise in
peripheral zone
What mutations are prostate cancer associated with
BRCA1/BRCA2
-breast cancer genes but also present in males
What zone of the prostate does BPH occur in
Transition zone
Presentation of prostate cancer is mostly
ASYMPTOMATIC
-only found through elevated PSA mostly
Presentation of prostate cancer is mostly ASYMPTOMATIC
+ not usually symptomatic until locally advanced or metastatic - what symptoms (5) /signs (1) will they present with then
Bone and back pain, Anorexia Haematuria Unexplained weight loss Lethargy
Asymmetrical nodular prostate on rectal exam
Lymphadenopathy
Relationship between age and prostate specific antigen (produced by prostate) levels
increases as you age
Describe the sensitivity and specificity of PSA to prostate cancer
High sensitivity
Low specificity
PSA is PROSTATE SPECIFIC but NOT CANCER SPECIFIC
Why is PSA not a good screening tool for prostate cancer
As it’s not cancer specific, it’ll pick up lots of false positives of people who have elevated PSA but not necessarily elevated due to prostate cancer, e.g could just be BPH
Causes of elevated PSA levels (5)
BPH Prostate cancer UTI Chronic prostatitis Recent rectal exam
Rectal finding of prostate cancer on rectal examination
Firm nodular mass
Prostate cancer is graded by which scoring system
+ describe the 3 grades of this scoring system and how the total score is calculated and how this relates to aggressiveness of the cancer
Gleason score
-biopsy taken then cells looked at to grade it
Grades 1 and 2 are normal so technically cancer grading starts at grade 3
Grade 3 - moderately differentiated
Grade 4 - moderate to high/poor differentiation
Grade 5 - anaplastic
Total Gleason score calculated by adding together the 2 most common Gleason grades (primary grade is the one that makes up largest area of tumour then secondary grade which is the same/the next largest)
So total/sum Gleason score ranges from 6-10 (as min is 3+3 and max is 5+5)
A total/sum Gleason score of 7 indicates an intermediate risk for aggressive cancer
The primary and secondary score could’ve been what combinations
Either 3+4 - better outlook
Or 4+3 - poorer outlook
Difference between grading and staging of a cancer
Grading refers to the aggressiveness of the cancer, i.e. how well or poor the cells are differentiated
Staging refers to the spread of the cancer