Concept
Urètre
Concepts associés (23)
Carcinome urothélial
Le carcinome urothélial (ou carcinome à cellules transitionnelles) est la forme morphologique la plus fréquente de cancer des voies excrétrices (calices, bassinet, uretères, vessie, urèthre). Il représente 90 % des cancers de la vessie. Carcinome urothélial papillaire non infiltrant (TNM pT1a) Carcinome urothélial papillaire non infiltrant de bas grade (TNM pT1a - OMS 1973 G1 et G2) Carcinome urothélial papillaire non infiltrant de haut grade (TNM pT1a - OMS G3) Carcinome urothélial plan non infiltrant (TNM
Épithélium pseudostratifié
A pseudostratified epithelium is a type of epithelium that, though comprising only a single layer of cells, has its cell nuclei positioned in a manner suggestive of stratified epithelia. As it rarely occurs as squamous or cuboidal epithelia, it is usually considered synonymous with the term pseudostratified columnar epithelium. The term pseudostratified is derived from the appearance of this epithelium in the section which conveys the erroneous (pseudo means almost or approaching) impression that there is more than one layer of cells, when in fact this is a true simple epithelium since all the cells rest on the basement membrane.
Foley catheter
In urology, a Foley catheter (named for Frederic Foley, who produced the original design in 1929) is a flexible tube that a clinician passes through the urethra and into the bladder to drain urine. It is the most common type of indwelling urinary catheter. The tube has two separated channels, or lumina (sg. lumen), running down its length. One lumen, open at both ends, drains urine into a collection bag. The other has a valve on the outside end and connects to a balloon at the inside tip.