Urological cancers Flashcards
What proportion of men with a raised PSA have cancer?
1/3
Non-cancer causes of raised PSA?
BPH Prostatitis and UTI Ejaculation Vigorous exercise Urinary retention Instrumentation of the urinary tract
PSA referral?
> 3.0 ng/ml in 50-69 y/o men
What is a chancre?
Genital ulcer usually formed in the primary stage of syphilis
Presenting sign of testicular cancer in young men?
Hydrocele - fluid around the testicle
Germ cell tumours can be divided into:
Seminomas
Non-seminomas
Examples of non-seminoma tumours:
Embryonal
Yolk sac
Teratoma
Choriocarcinoma
Non-germ cell tumours:
Leydig cell tumours
Sarcomas
Risk factors for seminomas and teratomas include:
Infertility Cryptorchidism Family history Klinefelter's syndrome Mumps orchitis
Germ cell tumour findings:
Elevated AFP in 60%
Elevated LDH in 40%
Seminoma findings:
hCG elevated in 20%
Presenting features of testicular cancer:
Painless (usually) lump
Hydrocele
Gynaecomastia
Risk factors for transitional cell carcinoma of the bladder:
Smoking
Exposure to aromatic amines - aniline dyes in the textile industry (e.g. 2-naphthylamine and benzidine)
Rubber manufacture
Cyclophosphamide
Risk factors for squamous cell carcinoma of the bladder:
Schistosamiosis (parasite)
Smoking
Which prostate cancer treatment causes an initial increase in the size of the tumour before shrinkage?
GnRH agonists such as buserelin
Function of GnRH antagonists?
Suppressed LH production and thus the release of DHT and suppresses tumour proliferation
Function of anti-androgens?
Directly block the effect of DHT and testosterone, preventing tumour proliferation
Often prescribed alongside GnRH agonists as can prevent the flare in growth
Function of 5-alpha-reductase blockers?
Shrink tumour by preventing formation of proliferative factor DHT from testosterone
Common complication of radical prostatectomy?
Erectile dysfunction
Localised prostate cancer management (T1/2)?
Watchful waiting
Radical prostatectomy
Radiotherapy: external beam and brachytherapy
Localised advanced prostate cancer management (T3/4)?
Hormonal therapy: GnRH agonist and anti-androgen
Radical prostatectomy
Radiotherapy: external beam and brachytherapy
Orchidectomy
Risks of radiotherapy for prostate cancer:
Bladder, colon and rectal cancer
Age range for teratoma of testicle?
Aged 20-30
Histology of seminoma?
Sheet like lobular patterns of cells
Fibrous septa with lymphocytic inclusions
Granulomas
Age of onset for non-seminomatous germ cell tumours:
Aged 20-30
Measure post chemo/for residual disease in non-seminomatous germ cell tumours?
Retroperitoneal lymph node dissection
Non-seminomatous germ cell tumour markers:
AFP elevated in 70% of cases
hCG elevated in 40% of cases
Seminoma markers:
AFP usually normal
hCG elevated in 10% of seminomas
LDH elevated in 10-20% of seminomas
What testicular cancer differential can be caused by chlamydia or gonorrhoea infections?
Epididymo-orchitis
Non-infective cause of epididymitis?
Amiodarone
Cause of hydrocele in children?
Patent processus vaginalis
Differentials for testicular cancer?
Epididymo-orchitis
Testicular torsion
Hydrocele
Why do you investigate visible haematuria?
Bladder/kidney cancer until proven otherwise
Immediate response to presentation of visible haematuria?
CT urogram and endoscopy
Where do transitional cell cancers form?
Collecting system
Ureter
Bladder
Urethra