Renal and GU cancers and prostate cancers Flashcards
What is the most common renal cancer?
Renal cell carcinoma
What is Transitional Cell Carcinoma
From urothelium – transitional epithelium
Rare occurrence in renal pelvis or ureter, common in bladder
What is the commonest abdominal tumour of childhood?
Wilm’s Tumour – nephroblastoma
What is Angiomyolipoma?
Benign renal tumour
Mesenchymal tumour full of blood vessels, smooth muscle & fat
What is oncocytoma?
Benign renal mass (BRM)
Thought to arise from intercalated cells of collecting duct
Simultaneous with RCC in 7-32%
Surveillance if biopsy proven, partial nephrectomy if in doubt
What is renal cell carcinoma?
Adenocarcinoma
Histological subtypes of renal cell carcinoma
Clear cell, papillary, chromophobe, collecting duct
Metastasis of RCC
Local invasion
Invasion of renal vein (tumour thrombus as far as right atrium!)
Lung (cannonball), brain or bone mets
Which gender more likely to have renal cell carcinoma
Females more than males
Risk factors for RCC?
- smoking
- obesity
- renal failure
- HTN
- social deprivation
Genetic causes of RCC
VHL syndrome – autosomal dominant
Paraneoplastic syndromes for RCC
Anaemia/polycythaemia 30%/5%
Hypertension 25%,
hypercalcaemia 20%,
Hypoglycaemia
Stauffer’s syndrome: hepatic dyfunction + fever + anorexia
Investigations for RCC
CT is gold standard imaging
FBC (polycythaemia/anaemia) U&E, LFT, Coag etc
Needle biopsy if diagnosis in doubt
classic triad of symptoms for renal cell carcinoma
flank pain
haematuria
abdo mass
Management of RCC?
Partial nephrectomy - Gold standard for small tumours confined to kidney
Radical nephrectomy
Palliative options
Adjuvant treatments
Presentation of Upper Tract Transitional Cell Carcinoma
Haematuria 80%, Loin pain 30% often “clot colic”
Management of Upper Tract Transitional Cell Carcinoma
Nephroureterectomy is gold standard curative treatment
Local treatment with ureteroscopy and laser of small lesions
General symptoms of kidney cancer
- haematuria
- loin pain
- mass
Treatment for renal cancers such as RCC
Surgical
Does not respond to radiotherapy
Upper tract / kidney TCC has the same pathology as what?
Bladder cancer
Bladder cancer pathologies
Transitional Cell Carcinoma (90%): from transitional epithelium - the “urothelium”
Squamous Cell Carcinoma (5% in UK, 75% in Egypt): metaplasia - dysplasia process from irritation eg stones, schistosomiasis
Adenocarcinoma (2%): quite rare
Rarities: Spindle cell carcinoma, melanoma, lymphoma, sarcoma
TCC risk factors
Men 2.5x > Women
Age: >50
Carcinogens: tobacco smoke, rubber, diesel exhaust
Industrial exposure: hairdressers, chemical workers
Drugs eg Phenacetin, Cyclophosphamide, Pioglitazone
TCC grading and staging
Stage:
- Tis carcinoma in situ: superficial but very dangerous
- Ta / T1 papillary non invasive / sub epithelial only: low risk
- T2 muscle invasive
- T3a/b through the muscle / invading perivesical fat
- T4a/b invading prostate / pelvic side wall
Implantation: TCC can spread along incisions/tracts eg SPC tract
Lymph nodes: iliac or para-aortic nodes
Distant Mets: to liver / lung / bone / adrenal
What is Transurethral Resection of Bladder Tumour
Complete resection is adequate for 70% of superficial low risk disease
Controls haematuria in advanced disease
rf for bladder cancer
- occupational exposure to dyes
hairdresser, painter, nail artist
-smoking - chemo and radiotherapy
-male
presentation of bladder cancer
Painless haematuria
gold standard diagnostic test for bladder cancer
flexible cytoscopy
treatment for bladder cancer
conservative= support
medical= chemo or radiotherapy
surgery= TURBT
T1= transurethral resection or local diathermy
T2-3 = Radical cystectomy
T4 = palliative chemo and radiotherapy
What are the risk of Transurethral Resection of Bladder Tumour?
Pain, infection, bladder perforation
Need for 3 way catheter & irrigation for a day or so after big resection
IF a patient has schistosmiasis what would this indicate
more likely to have squamous cell carcinoma than transitional
Differential diagnosis for bladder cancer:
Infection: UTI, pyelonephritis, TB
Malignancy: anywhere in tract
Stones: bladder, kidney, ureteric
Trauma: penetrating Vs Blunt
Nephrological: diabetes, nephropathy (proteinuria)
When do you do a re-resection of of bladder tumour
If incomplete, high grade seemingly non invasive, or no muscle in sample
To be done within 6 weeks
What is mitomicin C
Chemotherapy
Reduces disease recurrence
Minimal side effects
What is BCG? - Vaccination
Reduces disease progression and recurrence
Significant side effects, risk of systemic BCGosis
What surgeries do we use for Muscle invasive bladder cancer?
Radical cystoprostatectomy / cystourethrectomy & lymphadenectomy
This is major surgery, 1% mortality, 33% morbidity
What is TCC commonly caused by?
Smoking and chemical exposure