Search results
Results from the WOW.Com Content Network
The Paris System for reporting urine cytology, version 2.0, ranging from negative to positive for high grade urothelial carcinoma. [1] Urine cytology is a test that looks for abnormal cells in urine under a microscope.
Decoy cells owe their name to their strong resemblance to cancer cells, and may as such confuse the diagnosis of either viral infection or urothelial malignancy. During 1950s, cytotechnologist Andrew Ricci observed cells mimicking cancer cells by they were not, in a group of persons working in some kinds of industries - they were referred to as ...
Nuclear atypia refers to abnormal appearance of cell nuclei. It is a term used in cytopathology and histopathology. Atypical nuclei are often pleomorphic. Nuclear atypia can be seen in reactive changes, pre-neoplastic changes and malignancy. Severe nuclear atypia is, in most cases, considered an indicator of malignancy.
Transitional epithelial cells, also known as urothelial cells, line the urinary tract from the renal pelvis through the ureters and bladder and, in males, the upper portion of the urethra. They are smaller than squamous cells and their shape varies based on the layer of epithelium from which they are derived, but they are most commonly round or ...
Urothelial cell cancers comprise just over half of primary urethral cancers. Roughly another quarter of cases are squamous cell carcinomas, and the majority of the remainder are adenocarcinomas, which originate from the cells of various secretory glands in and around the urethra. Up to 10% of primary urethral cancers have variant histology ...
These cells contain a prominent Golgi apparatus and an array of membrane-bound vesicles. [5] These function in the packaging and transport of proteins, such as keratin, to the superficial cell layer. The cells of the superficial cell layer that lines the lumen are known as facet cells or umbrella cells. This layer is the only fully ...
Bladder cancer is the abnormal growth of cells on the bladder. These cells, which originate in the urothelium, can grow to form a tumor, which eventually spreads, damaging the bladder and other organs. Most people with bladder cancer are diagnosed after noticing blood in their urine.
They cannot be reliably differentiated from low grade papillary urothelial carcinomas using cytology, [1] and their diagnosis (vis-a-vis low grade papillary urothelial carcinoma) has a poor inter-rater reliability. [2] Pathologic grading and staging tumors are: graded by the degree of cellular atypia (G1->G3), and staged: [citation needed ...