® Gallery by 
®
| Carcinoma in situ (CIS) /
Transitional cell carcinoma in situ (TIS) |
|
 |
 |
| Carcinoma in situ (CIS) or transitional cell
carcinoma in situ (TIS) preceeds invasion of the lamina propria (T1)
and can often be seen around the edges of a T1 tumor. TIS images
show an indistinct border between the urothelium (U) and the lamina
propria (LP), with poor contrast between these layers. There is still
evidence of lamina propria structure and muscularis propria (MP) below
the lamina propria. The border between the lamina propria and
muscularis can be distinct, but often inflammation related to the TIS
causes the lamina propria to be "patchy" in color, thereby
obscuring the border with the muscularis. |
This image shows carcinoma in situe stained
with H&E. The images is taken from:
http://www.webpathology.com/slides/slides/Bladder_CIS2(1).jpg |
| Web site © Imalux Corporation 2009, All rights reserved. | |