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Transitional cell carcinoma is a type of cancer that arises from the transitional epithelium, a tissue lining the inner surface of these hollow organs. [1] It typically occurs in the urothelium of the urinary system; in that case, it is also called urothelial carcinoma.
Nephrogenic adenoma is a benign growth typically found in the urinary bladder. It is thought to result from displacement and implantation of renal tubular cells, as this entity in kidney transplant recipients has been shown to be kidney donor derived. [1] This entity should not be confused with the similar-sounding metanephric adenoma.
For example, cigarette smoking leads to the concentration of carcinogens in the urine and is a leading cause of bladder cancer. Aristolochic acid , a compound found in plants of the family Aristolochiaceae , also causes DNA mutations and is a cause of liver, urothelial and bladder cancers. [ 9 ]
In histology, a signet ring cell is a cell with a large vacuole. The malignant type is seen predominantly in carcinomas . Signet ring cells are most frequently associated with stomach cancer , [ 1 ] but can arise from any number of tissues including the prostate , [ 2 ] bladder , gallbladder , [ 3 ] breast , colon , [ 4 ] ovarian stroma and ...
Samples can also be collected from a urinary catheter or by inserting a needle through the abdomen and into the bladder (suprapubic aspiration). [25] In infants and young children, urine may be collected into a bag attached to the genital region, but this is associated with a high risk of contamination. [ 8 ]
This is an accepted version of this page This is the latest accepted revision, reviewed on 13 November 2024. This article is about the human urinary system. For urinary systems of other vertebrates, see Urinary systems of birds, urinary systems of reptiles, and urinary systems of amphibians. Anatomical system consisting of the kidneys, ureters, urinary bladder, and the urethra Urinary system 1 ...
For example: Urinary tract infections (UTIs) are infections that affect part of the urinary tract. [8] When it affects the lower urinary tract it is known as a bladder infection (cystitis) and when it affects the upper urinary tract it is known as a kidney infection (pyelonephritis). [9]
Bladder tumors are classified by their appearance under the microscope, and by their cell type of origin. Over 90% of bladder tumors arise from the cells that form the bladder's inner lining, called urothelial cells or transitional cells; the tumor is then classified as urothelial cancer or transitional cell cancer.