Bladder Cancer
Bladder cancer most often presents with painless haematuria; cystoscopy and TURBT establish the diagnosis and depth of invasion, separating non-muscle-invasive disease from muscle-invasive disease that needs specialist radical-treatment planning.
Definition
Bladder cancer is a malignant tumour of the bladder, most often urothelial carcinoma. It is categorised chiefly by whether it invades the detrusor muscle and by recurrence/progression risk.
First principles
The urothelium behaves as a field, not a single lesion
Urothelial carcinoma can arise at multiple sites in the urothelium, so multifocal tumours and new recurrences are clinically important even after one lesion is resected. Smoking and occupational exposure are major modifiable risk factors; cessation should be addressed as part of cancer care.
This page is exam revision material, not medical advice, and must not be used for patient care. Always check drug doses against the BNF and current guidance. Full disclaimer.

