Cytogenetic analysis was performed in 80 patients with bladder tumor. The mitotic activity in patients with tumor G1, G2 and G3 degree of differentiation was not significantly different among them. Most of the patients with noninvasive tumor (G1) had a diploid or nearly diploid chromosome number, but all patients with invasive (G2 and G3) tumor had polyploidy. Marker chromosomes were found in 14 patients and 9 of them developed recurrence very soon. There is a good correlation between the recurrence rate and numerical or structural chromosomal abnormalities. This study emphasizes the importance of the chromosome analysis in the evaluation of therapy and prognosis for patients with bladder tumors.

Keywords:
Bladder carcinoma, Chromosomes of carcinoma
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© 1988 S. Karger AG, Basel
1988
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