Tumours of Urinary System Flashcards
What are urothelial tumours?
Malignant tumours of transitional cell epithelium
Where can urothelial tumours occur?
Anywhere along the renal tract
From renal calyces to tip of urethra
Where is the most common site (90%) of urothelial tumours?
Bladder
What is the commonest tumour of the bladder?
Transitional cell carcinoma
What endemically can cause squamous cell carcinoma of the bladder?
Schistosomiasis
What are the risk factors for TCC?
Smoking
Aromatic amines
non-hereditary genetic abrnormalities
What are the risk factors for squamous cell carcinoma of bladder?
Schistosomiasis
Chronic cystitis
Cyclophosphamide
Pelvic radiotherapy
Where are the vast majority of adenocarcinomas of the bladder found?
Urachal
What are the common presenting features of bladder cancer?
Painless visible haematuria Symptoms due to metastatic disease Recurrent UTI Storage bladder symptoms e.g: - dysuria -frequency -nocturia
What is the commonest cause of painful haematuria?
UTI
What investigations should be done for suspected bladder cancer?
Urine culture Cystourethroscopy CT urogram USS Urine cytology BP U&E
What is the risk of malignancy in frank haematuria?
High
What is the next line investigation for frank haematuria>
Flexible cystoscopy within 2 weeks
IVU & USS
What is the malignancy risk of dipstick microscopic haematuria?
Lower
What is the next line investigation for microscopic haematuria?
Flexible cystoscopy within 4-6 weeks
IVU & USS
How is diagnosis for bladder cancer made>
Cystocopy and endoscopic resection
EUA to asses bladder mass/thickening
What staging is used for bladder cancer?
TNM
How is bladder cancer staged?
CT
MRI
What is the treatment for bladder cancer?
TURBT
Radical
What is Grade 1 of bladder cancer?
Well differentiated
Commonly non-invasive
What are features of grade 2 bladder cancer?
Moderately differentiated
Often non-invasive
What are features of grade 3 bladder cancer?
Poorly differentiated
Often invasive
What are the 2 descriptions of T stages in bladder cancer?
Non-muscle invasive
Muscle invasive
Which muscle is invaded in bladder cancer?
Detrusor m.
`What is the treatment for low grade non-muscle invasive bladder cancer?
TURBT
Followed by single instillation intravesical chemo within 24 hrs
Prolonged endoscopic follow up for moderate grade tumours - cystoscopy on regular basis
What is the treatment for high grade non-muscle invasive bladder tumour?
Very aggressive
Endoscopic resection alone not sufficient
What should CIS bladder tumour treatment be>
Intravesical BCG therapy
Weekly for 3 weeks repeated 6 monthly over 3 years
What is the treatment for muscle invasive bladder cancer?
Neoadjuvant chemo for local and systemic control
Radical radiotherapy and/or
radical Cystoprostatectomy (men) or anterior pelvic exenteration with urethrectomy (women); with extended lymphadenectomy
What is the prognosis of bladder cancer dependent on?
Stage
Grade
Size
Multifocality
What are the main symptoms of Upper tract urothelial cancer?
Frank haematuria
Unilateral ureteric obstruction
Flank or loin pain
What are some symptoms of metastatic UTUC cancer?
Bone pain
Hypercalcaemia
What investigations should be done for UTUC?
CT IVU
Urine cytology
Uteroscopy and biopsy
Where is upper tract TCC more commonly found?
Renal pelvis
or collecting system
Where is upper tract TCC less commonly found?
Ureters
What is there a high risk of in endoscopic resection in upper tract TCC?
Local recurrence
How are most upper tract TCC best treated?
By radical nephro-ureterectomy
RNU
What is nephro-ureterectomy?
Minimally invasive surgical procedure to remove the renal pelvis, kidney and entire ureter, along with the bladder cuff
Name 2 benign renal tumours?
Oncocytoma
Angiomyolipoma
What is the commonest malignant renal tumour?
Renal adenocarcinoma
Where do most renal adenocarcinomas arise from?
Proximal tubules
What is the commonest histological subtypes of renal adenocarcinoma?
Clear cell
What are the risk factors for Renal adenocarcinoma?
FH Smoking Anti-hypertensives Obesity End-stage renal disease
What is the typical presentation of renal carcinoma?
Asymptomatic with incidental finding (50%)
Classic triad
- flank pain
- mass
- haematuria
Paraneoplastic syndrome
Metastatic disease
e.g bone pain
Where are common sites of metastases for renal cancer?
Bone
Brain
Lung
Liver
How is renal cancer staged?
CT
What staging is used for renal cancer?
TNM
What is TNM T1 for renal carcinoma?
<7cm
Confined within renal capsule
What is TNM T2 for renal cancer?
Local extension outside capsule
What is T3 TNM for renal cancer?
Local extension outside capsule
T3b and T3c involved vena cava
Where can renal cancer have venous invasion to?
IVC
What investigations are done for renal cancer?
CT
Blood; U&E, FBC
What is the treatment for renal cancer?
Radical nephrectomy
- laparoscopic or open
Palliative cytoreductive nephrectomy in metastatic disease
Immunotherapy