bladder carcinoma in situ
Findings
No curated finding names bladder carcinoma in situ yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Also known as carcinoma in situ of the urinary bladder or high grade intraurothelial neoplasia, this is a flat lesion of the transitional cell epithelium characterized by severe cytologic atypia. This lesion is confined to the urothelium, and is a precursor of invasive transitional cell carcinoma of the bladder. Stage 0is includes: Tis, N0, M0. Tis: Carcinoma in situ: "flat tumor". N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 6th and 7th eds.)
Definition from the Mondo Disease Ontology (MONDO:0004703), read 2026-09-29. CC BY 4.0.
Where it sits
Other names
27 names
Resolves to: bladder carcinoma in situ
- Also called
- bladder flat carcinoma in situbladder flat CIScarcinoma in situ of bladdercarcinoma in situ of the urinary bladdercarcinoma in situ of urinary bladderflat carcinoma in situ of the bladderflat carcinoma in situ of the urinary bladderflat CIS of the bladderflat CIS of the urinary bladderhigh grade bladder Intraurothelial neoplasiastage 0 urinary bladder carcinomastage 0is bladder cancerstage 0is bladder carcinomastage 0is bladder urothelial cancerstage 0is bladder urothelial carcinoma