Urothelial carcinomas of the upper urinary tract (UUT) are uncommon. Cytological examination of voided urine or washings from the UUT has been part of the standard workup for upper tract urothelial carcinoma (UTUC); however, its value remains controversial. The lack of uniform terminology and specific diagnostic criteria could also have contributed to the inferior performance of urinary cytology for detecting UTUC. The Paris System for Reporting Urinary Cytology (TPS) has provided a standardized reporting system for urinary cytology specimens with clearly defined cytomorphologic diagnostic criteria and found acceptance on an international level after its implementation in 2016. Recent studies have shown that TPS has led to improved diagnostic performance of urinary cytology; however, most of these studies had focused on the evaluation of lower urinary tract cytology specimens. Only a limited number of new research studies have analyzed the effect of TPS when applied to UUT cytology specimens. In the present report, we have summarized the current understanding and utility of UTUC, including its molecular biology, and reviewed the current literature.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jasc.2020.06.011 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Renal Histopathological Changes in Children With Congenital Ureteropelvic Junction Obstruction.
Clin Pediatr (Phila)
February 2025
Department of Pediatric Surgery, St. John's Medical College Hospital, Bangalore, Karnataka, India.
Renal histologic changes in congenital ureteropelvic junction obstruction (UPJO), although well documented, are sparsely studied in children. This study aims to establish a histological grading depending on the glomerular and tubulo-interstitial changes in hydronephrotic kidneys and determine correlation with age at surgery and impact on function post-pyeloplasty. A renal cortical wedge biopsy was obtained after pyeloplasty and histological changes were graded from 1 to 4.
View Article and Find Full Text PDFTranscriptional signature of CD56 NK cells predicts favourable prognosis in bladder cancer.
Front Immunol
January 2025
Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.
Human natural killer (NK) cells can be sub-divided into two functional subsets but the clinical significance of these CD56 and CD56 NK cells in anti-tumour immunity remains largely unexplored. We determined the relative abundances of gene signatures for CD56 and CD56 NK cells along with 3 stromal and 18 other immune cell types in the patient tumour transcriptomes from the cancer genome atlas bladder cancer dataset (TCGA-BLCA). Using this computational approach, CD56 NK cells were predicted to be the more abundant tumour-infiltrating NK subset which was also associated with improved patient prognosis.
View Article and Find Full Text PDFImmunohistochemical evaluation of SOX-10 in patients with urinary bladder cancer.
Wiad Lek
January 2025
DEPARTMENT OF GENERAL PATHOLOGY AND FORENSIC MEDICINE, COLLEGE OF MEDICINE, UNIVERSITY OF KUFA, KUFA, IRAQ.
Objective: Aim: To evaluate the expression levels of SOX-10 in tissues of bladder tumor and to prove the correlation between SOX-10 expression and clinicopathological characteristics of bladder tumors, including patient age, sex, tumor grade, and muscle invasion.
Patients And Methods: Materials and Methods: Forty formalin fixed paraffin embedded FFPE tissue blocks gathered by transurethral resection of bladder tumor are collected from teaching hospitals at Al-Najaf governorate. Those blocks were stained by hematoxylin and eosin.
Immunohistochemical evaluation of GATA-3 in patients with urinary bladder cancer.
Wiad Lek
January 2025
DEPARTMENT OF GENERAL PATHOLOGY AND FORENSIC MEDICINE, COLLAGE OF MEDICINE, UNIVERSITY OF KUFA, KUFA, IRAQ.
Objective: Aim: To analyze expression levels of GATA-3 in bladder tumor tissues and to prove a relation between expression of GATA-3 and clinicopathological characteristics of bladder tumors, including patient age, sex, tumor grade, and muscle invasion.
Patients And Methods: Materials and Methods: Forty formalin fixed paraffin embedded (FFPE) tissue blocks obtained from bladder tumor by transurethral resection are collected from teaching hospitals at Al-Najaf governorate. Those blocks are stained by using hematoxylin and eosin stain.
[Molecularly defined renal cell carcinomas].
Pathologie (Heidelb)
January 2025
Institut für Pathologie, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraße 8-10, 91054, Erlangen, Deutschland.
Background: The latest edition of the WHO classification of urinary and male genital tumours was published in 2022. The revision was based on the newest scientific literature. This article summarizes the updated recommendations regarding the classification of molecularly defined tumours.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!