Renal system cancers Flashcards
What covers the prostatic urethra?
Transitional epithelium
Where is the transitional zone of the prostate?
Surrounds prostatic urethra
What does the transitional zone give rise to?
BPH
What is the central zone of the prostate?
Cone shaped region surrounds the ejaculatory ducts
Clinical presentation of prostate cancer
Haematuria/Haematospermia
Bone pain
Anorexia
Weight loss
What is PSA?
Glycoprotein enzyme produced by the secretory epithelial cells of the prostate gland
What is the function of PSA?
Involved in liquification of semen
What can cause raised PSA?
Prostatitis/UTI
Retention
Cathererisation
DRE
When is a PSA test indicated?
When patient has symptoms
Indications for a TRUS biopsy?
Men with abnormal DRE and elevated PSA
Previous biopsies showing PIN or ASAP
Previous normal biopsies but rising PSA trends
What type of cancer are 95% of prostate cancers?
Multifocal adeocarcinomas
What are the most common sites for prostate metastases?
Pelvic lymph nodes
Skeleton
Are metastases of prostate cancer sclerotic or lytic?
Sclerotic
What system is used to grade prostate cancers?
Gleasons
What imaging modalities can be used to stage prostate cancer?
Bone scan
MRI
CT scan
Treatment options
Watchful waiting
Radical prostatectomy rADICAL RADIOTHERAPY
Complications of radical prostatectomy
ED
Incontinence
Bladder neck stenosis
When would hormonal therapy be used for prostate cancer?
Symptomatic patients who need palliation of symptoms unfit for curative
Management of metastatic prostatic cancer
Androgen deprivation therapy (LHRH analogues, anti-androgens)
Steroids
Cytotoxic chemo
What influences the growth of prostate cancer cell?
Testosterone
Dihydrotestosterone
Sources of testosterone
Testis (90%)
Adrenal (10%)
What happens if prostate cells are deprived of andorgenic stimulation?
They undergo apoptosis
How do LHRH agonist work?
own regulate LHRH receptors with subsequent
Why is anti-androgen given 1 week before and 2 weeks after LHRH agonists?
To prevent testosterone surge (can cause catastrophic spinal cord compression
Side effects of LHRH agonists
Loss of libido/ED Hot flushes/sweats Weight gain Gynaecomastia Anaemia Cognitive changes Osteoporosis
What is the action of anti-androgens?
Compete with testosterone and DHT for biding sites on prostate cell nucleus promoting apoptosis and inhibiting CaP growth
What are the 2 types of anti-androgens?
Steroidal
Non-steroidal
Which type of anti-androgen maintains sexual interest & libido?
Non-steroidal
What are 90% of uroepithelial tumours?
Transitional cell
Appearance of transitional cell carcinoma on imaging
HALO SIGN
How are transitional cell cancers diagnosed?
CT urgram
Examples of benign renal tumours
Renal cysts
Oncocytoma
Angiomyolipoma
What is the embryonic tumour of the kidneys?
Nephroblastoma (Wilm’s tumour)
What is the main risk with renal angiomyolipomas?
Haemorrhage
What would be seen on a CT f an oncocytoma?
Central scar
What is the classic triad of renal cell carcinoma? (only present in 15%)
Loin pain
Renal mass
Haematuria
What could multifocal or bilateral renal cell carcinoma be suggestive of?
Von Hippel-Lindau
What is the gold stanard investigation for RCC?
CT contrast
Which investigation has a high false negative in RCC?
Biopsy
Where does RCC tend to metastasize?
Lungs
Liver
Bone
Brain
Management of RCC
Radical nephrectomy
Partial nephrectomy
Radiofrequency ablation
What adjuvant therapy can be given in RCC
IL2
Interferon alpha
Tyrosine kinase inhibitors (reduces neovascularisation)
What is BXO?
Pre-malignant cutaneous lesion
Managemetn of lichen sclerosis at atrophicus
Circumcision
Meatal stenosis requiring dilation
Glans resurfacing
Examples of squamous cell carcinomas in situ on the penis?
Erthyroplasia of Queyrats
Bowen’s disease
Zoon’s balantis
Treatment of squamous cell carcinoma in situ
Circumcision
Topical fluorouracil
Presentation of invasive SCC of the penis
Red raised area
Fungating mass
Foul smelling
Phimosis
Which strain of HPV is linked to development of SCC of the penis
HPV 16
In which testicular tumour is AFP never raised?
Seminoma
Is a raised HCG more likely to be seminoma or teratoma?
Teratoma