DNA ploidy assessment method applied to primary breast carcinoma FNA biopsies.
2002
: The goal of our study was to assess suitability of FNA biopsy material as a source of samples (cell suspension) for DNA ploidy assessment in neoplastic tumors using flow cytometry. DNA ploidy is an established prognostic factor in many types of cancers. Aneuploid breast tumors are characterized by increased aggressiveness which manifests itself through rapid local progression and metastatic spread. Investigated specimens were breast cancer FNA biopsy cell suspensions. Measurements were performed using flow cytometry. Material studied comprised 143 cases analyzed in 1999-2000. We found in this group 101 carcinoma cases with aneuploid type and 42 cases of primary breast carcinoma with diploid type of cell cycle. Immunocytochemical assesssment of estrogen receptor and progesterone receptor status was performed in group of 105 cases. DNA ploidy was compared to receptor status of the investigated cells. DNA aneuploidy correlated with weak or no reaction for the presence of estrogen and progesterone receptors. Our study demonstrates the suitability of DNA ploidy assessment method applied to cytological material from FNA biopsies.
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