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Characterization of bladder tumours by flow cytometry on bladder washings.

Abstract
The DNA content of individual nuclei in bladder washings was estimated by means of flow cytometry. A method of preparation using a detergent to produce single nuclei was used. By means of a differential count the DNA distribution was corrected for the content of leucocytes. The DNA histograms were divided into a 2c fraction containing nuclei with less than 3c DNA, a 4c fraction with 3c--6c DNA and an 8c fraction with more than 6c DNA. Three groups of patients were investigated: 17 patients with invasive bladder tumours, 38 patients with non-invasive bladder tumours, and 22 patients with normal bladders. The washings from patients with invasive tumours contained significantly larger 4c and 8c fractions than washings from normal bladders. There was a correlation between cell anaplasia and the DNA distribution: grade III bladder tumours had larger 4c and 8c fractions than grade II tumours.
AuthorsT Pedersen, J K Larsen, T Krarup
JournalEuropean urology (Eur Urol) Vol. 4 Issue 5 Pg. 351-5 ( 1978) ISSN: 0302-2838 [Print] Switzerland
PMID710467 (Publication Type: Journal Article)
Chemical References
  • DNA, Neoplasm
Topics
  • Cell Nucleus (analysis)
  • Cytodiagnosis
  • DNA, Neoplasm (analysis)
  • Epithelium (pathology)
  • Humans
  • Therapeutic Irrigation
  • Urinary Bladder
  • Urinary Bladder Neoplasms (diagnosis)

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