Non-invasive bladder cancer, stage I tumor. This illustration shows a zoom at the level of the bladder wall with all its structures. From bottom to top we have the bladder cavity, the epithelium (bluish gray cells), the connective tissue, the muscle consisting of three layers and finally the tissue that surrounds the bladder, here the parietal peritoneum. A superficial stage I cancerous tumor is visible in this white drawing. The tumor invades the deeper connective tissues, between the bluish-gray epithelium and the muscle layers of the bladder wall. This connective tissue is called lamina propria. - Restriction : Exclusive to pharmaceutical laboratories in Belgium. from 04/26/2020