Summary
The cellular DNA content of formalin-fixed, paraffin-embedded specimens from 47 ductal adenocarcinomas of the pancreas and 5 adenocarcinomas of the ampulla of Vater was analysed using flow cytometry. Ploidy and the fraction of cells in the S and G2M phases were determined and correlated with tumour stage and grade as well as patients' survival. Cell populations with aneuploid DNA content were observed in 15% of the tumours. The S + G2M fractions ranged between 1% and 10%. Compared to non-neoplastic tissue of the pancreas the S + G2M fraction was significantly higher in the carcinomas. Cox regression analysis revealed the S + G2M fraction as an independent prognostic factor (p< 0.05). Ploidy was of no prognostic value for survival, but correlated weakly with tumour stage and tumour grade. All patients without lymph node metastases at time of surgery had diploid tumours. Aneuploidy was restricted to tumours in advanced stages and tended to be more frequent in high-grade tumours.
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Baisch, H., Klöppel, G. & Reinke, B. DNA ploidy and cell-cycle analysis in pancreatic and ampullary carcinoma: flow cytometric study of formalin-fixed paraffin-embedded tissue. Vichows Archiv A Pathol Anat 417, 145–150 (1990). https://doi.org/10.1007/BF02190532
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DOI: https://doi.org/10.1007/BF02190532