Table 1 Tumor classification according to the grade of invasion as defined in [32]
From: Morphological predictors for microsatellite instability in urothelial carcinoma
Stage | Definition |
|---|---|
Ta | Papillary noninvasive carcinoma. |
Tis | Flat urothelial carcinoma in situ. |
T1 | Tumor invades lamina propia. Connective tissue between the urothelium and the detrusor muscle. |
T2 | Tumor invades muscularis propria. Thick bundles of detrusor muscle. |
T3 | Tumor invades perivesical tissue. Adipose tissue beyond muscularis propia. T3a: microscopic invasion. T3b: macroscopic invasion. |
T4 | Tumor invades other organs. |