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Nodal involvement in poorly differentiated breast cancer
R Dickinson1, A Price, M V Agrez
1Discipline of Surgery, Royal Newcastle Hospital, New South Wales, Australia.
The Australian and New Zealand Journal of Surgery
|April 1, 1991
Summary
For invasive ductal breast cancer, more examined axillary nodes correlated with more metastatic nodes in poorly differentiated tumors. This finding impacts breast cancer trial design and patient stratification.
Area of Science:
- Oncology
- Pathology
Background:
- Nodal involvement is a critical prognostic factor in breast cancer.
- Accurate assessment of axillary lymph node status is essential for treatment planning and prognosis.
Purpose of the Study:
- To investigate the relationship between the number of examined axillary nodes and the degree of nodal involvement in invasive ductal breast cancer.
- To explore the implications of these findings for breast cancer clinical trials.
Main Methods:
- Analysis of nodal status in a consecutive series of 400 patients with invasive ductal breast cancer.
- Correlation analysis between the number of metastatic nodes and the number of axillary nodes examined, stratified by tumor differentiation.
Main Results:
- A positive correlation was found between the number of metastatic nodes and the number of axillary nodes examined specifically in poorly differentiated invasive ductal breast tumors.
- No significant correlation was observed for moderately differentiated tumors.
Conclusions:
- The extent of axillary lymph node examination may influence the detection rate of metastatic nodes, particularly in poorly differentiated breast cancers.
- These findings suggest a need to consider the number of examined nodes in the interpretation of nodal status and in the design of breast cancer trials.