Cellularity in breast carcinoma.

Am J Clin Pathol

Department of Pathology, UMDNJ-New Jersey Medical School, Newark 07103.

Published: January 1990

AI Article Synopsis

  • The study examined tumor cellularities in 23 cases of infiltrating ductal carcinoma of the breast and looked at how they relate to various clinical and pathological features.
  • The Cellularity Mean Index (CMI), which measures the percentage of tumor volume made up of invasive tumor cells, showed significant links to lymph node involvement (P = 0.03) and mitotic activity (P = 0.0002).
  • The findings suggest that as tumor cellularity increases, so does the mitotic activity of the cells, indicating a potential relationship between these two factors in breast cancer progression.

Article Abstract

Tumor cellularities were observed in 23 consecutive cases of infiltrating ductal carcinoma of the breast and correlated with other morphometric, pathologic, and clinical features. The cellularity mean index (CMI), defined as the percentage of tumor volume occupied by invasive tumors cells, was found to correlate with lymph node involvement by tumor (P = 0.03) and the number of mitotic figures per ten high-power fields (P = 0.0002). The CMI also correlated with mitotic activity (P = 0.01) when the latter was expressed as the percentage of tumor cells actively in mitosis, thus correcting for differences in cellularity between individual tumors. The relationship between cellularity and mitotic activity is discussed.

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http://dx.doi.org/10.1093/ajcp/93.1.98DOI Listing

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