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Pulse cyto photometric investigations on the biological behavior of laryngeal carcinomas



Pulse cyto photometric investigations on the biological behavior of laryngeal carcinomas



Zentralblatt fuer Allgemeine Pathologie und Pathologische Anatomie 121(4-5): 389-396



Laryngeal carcinomas [25 cases] were investigated by pulse cytophotometry, stained with ethidium bromide after pepsination. The karyograms were interpreted as DNA-distribution curves. In diploid populations the height of the 4c-peak was taken as a measure of proliferation rate. Aneuploidy and polyploidy were estimated by comparison with human diploid material. In this material 13 polyploid tumors were found. After dividing the cases into groups (1 with slow, 2 with rapid progression) the moiety of polyploid and aneuploid tumors and the height of the 4c-peak was significantly higher in group 2. Pulse cytophotometry gives reliable information showing the great variability of biological characteristics of laryngeal carcinomas. Possibly this may be a basis of a more differentiated therapy.

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