Renal system malignancies Flashcards
Area ejaculatory ducts drain into
Verumontanum
Transitional zone of prostate
Surrounds prostatic urethra
Gives rise to BPH
Peripheral zones of prostate
Posterolateral
Most prostate cancers
Central zone
Surrounds ejaculatory ducts
Most common malignancy affecting men in the UK
Prostate cancer
Most common in who?
70-74 years
Western world
Black
FH
Presentation of prostate cancer
Usually asymptomatic - picked up by PSA
Haematuria, haematospermia
Bone pain, anorexia, weight loss
What is PSA?
Glycoprotein produced by epithelial cells of prostate
Serum and semen levels of PSA
In health: semen levels high, serum levels low
In cancer: serum levels high
Other conditions which elevate PSA?
BPH Prostatitis/UTI Retention Catheter PR exam
Investigations for prostate cancer
PR exam
PSA
Transrectal US and biopsy
Bone scam, MRI, CT for staging
What type are most prostate cancers?
Multifocal adenocarcinomas
Most common prostatic mets
Spine - sclerotic
Pelvic nodes
What scoring system used for prostate cancer grading?
Gleason’s score - based on appearance
Appearance of prostate cancer
Loss of basement membrane then loss of glandular structure
Treatment of prostate cancer
Watchful waiting Surgery Chemotherapy Radiotherapy Hormonal therapy
Hormonal control of prostate
Under influence of testosterone
Deprived of testosterone = apoptosis
Types of hormonal therapy
LHRH agonists
Anti-androgens
How do LHRH agonists work?
Chronic exposure results in downregulation of LHRH receptors = suppression of LH and FSH and suppression of testosteron
Provide anti-androgen for 3 weeks due to initial increase
Side effects of LHRH agonists
Loss of libido Hot flushes and sweats Weight gain Gynaecomastia Anaemia Cognitive changes Osteoporosis
How do anti-androgens work?
Compete with testosterone for receptors = apoptosis of cancer cells
Side effects of anti-androgens
Steroidal: loss of libido, ED, gynaecomastia, hepatotoxic, cardiotoxic
Non-steroidal: gynaecomastia, hot flashes, hepatotoxic
Diagnosis of bladder cancer
Xray
Uroscopy
CT
Types of bladder cancer
Transitional cell 90%
SCC 9%
Types of transitional cell cancer
Papillary - 50% are malignant
Non-papillary - all are malignant
Appearance of transitional cell cancer
Multicentric
Bilateral
Who gets bladder cancer?
Males >50
Angiomyolipoma
Benign
Hamartoma: fragile BVs, fat, smooth muscle
How to diagnose angiomyolipoma
CT
Biopsy (dangerous due to haemorrhage)
Treatment of angiomyolipoma
Embolisation if bleed
Oncocytoma
Benign, can look like malignant RCC
Central scar on CT
Diagnosis of oncocytoma
CT central scar (strands radiate out)
Nephrectomy - high false negative rate of malignant
Presentation of RCC
Loin pain
Renal mass
Frank haematuria
Paraneoplastic: weight loss, bone pain, anaemia, HT, hypercalcaemia
Who gets RCC?
Males 65-75
Types of RCC
Adenocarcinoma of PCT
Carcinoma (epithelial)
Clear cell and papillary
CD adenocarcinoma
Syndrome which may lead to multiple, bialteral renal tumorus
VHL
Diagnosis of RCC
US
CT
Biopsy
How does RCC spread?
Haematogenous via renal vein
Mets to lung, liver, bone, brain
Treatment of RCC
Surgery - total/partial nephrectomy
Biological therapies
BXO
Balanitis Xerotica Obliterans
Pre-malignant lesion
Scarring of foreskin and up urethra, white demarcated line
White patches, bleeding, pain
Treatment of BXO
Circumcision
Dilatation
Glans resurfacing, skin graft
SCC of penis in situ
Red velvety patches
Bowen’s or Queyrat’s (pre-malignant) = 5FU or circumcision
Invasive SCC of penis
Older men, red raised area, fungating mass, foul smelling, phimosis (narrowing)
HPV 16
Treatment of invasive SCC of penis
Surgery
Chemo
Radio
Nodes
Germ cell tumours of testicles
Seminoma
Teratoma
ITGCN (intra-tubular germ cell neoplasia)
Presentation of testicular cancer
Painless swelling, hard
Neck nodes, SOB, clavicular nodes
Diagnosis of testicular cancer
US
CXR
CT
AFP marker
Raised in teratoma with yolk sac elements
HCG marker
Raised in teratoma with trophoblast components
LDH and placental ALP markers
Raised in seminoma
Who gets testicular cancer?
20-35 years
Undescended testes
Where does testicular cancer mets to?
Kidneys
Treatment of testicular cancer
Radiotherapy
Chemotherapy
Surgery