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Tubular differentiation in African breast cancer
O F Ikpatt1, T Kuopio, Y Collan
1Department of Pathology, University of Calabar Teaching Hospital, Nigeria. ofrikpatt@yahoo.com
Advances in Clinical Pathology : the Official Journal of Adriatic Society of Pathology
|September 25, 2009
Summary
This study identified a new numerical threshold for breast cancer grading in Nigeria. A fraction of fields with tubular differentiation (FTD) of 15% can help predict patient outcomes.
Area of Science:
- Oncology
- Pathology
- Epidemiology
Background:
- Accurate histological grading is crucial for breast cancer prognosis and treatment.
- Existing grading systems may require adaptation for diverse populations.
- Tubular differentiation is a key feature in breast cancer histology.
Purpose of the Study:
- To establish numerical thresholds for breast cancer grading using the fraction of fields with tubular differentiation (FTD).
- To evaluate the prognostic significance of FTD in Nigerian breast cancer patients.
- To propose an optimized grading system for the local diagnostic and therapeutic environment.
Main Methods:
- Retrospective analysis of 300 Nigerian breast cancer cases.
- Calculation of the fraction of fields with tubular differentiation (FTD).
- Kaplan-Meier survival analysis and Cox regression (univariate and multivariate).
Main Results:
- The mean FTD in Nigerian breast cancer was 16.7%, lower than European cohorts.
- Decreasing FTD correlated with higher histological grades (p < 0.0001) and advanced clinical stage (p = 0.0190).
- An FTD cut-point of 15% emerged as a significant prognosticator, particularly in larger tumors and specific patient subgroups.
Conclusions:
- The fraction of fields with tubular differentiation (FTD) is a valuable prognostic marker in Nigerian breast cancer.
- A proposed FTD cut-point of 15% can aid in optimizing breast cancer grading.
- Grading systems should be tailored to the specific diagnostic and therapeutic context.
