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Nuclear grading of renal cell carcinomas--is morphometry necessary?
K Donhuijsen1, S Schulz, L D Leder
1Institute of Pathology, University of Essen, Federal Republic of Germany.
Journal of Cancer Research and Clinical Oncology
|January 1, 1991
Summary
Objective nuclear grading using morphometry is superior to subjective estimation for renal cell carcinoma prognosis. This method identifies distinct prognostic groups, aiding in patient stratification for treatment strategies.
Area of Science:
- Urology
- Oncology
- Pathology
Background:
- Comparative studies on subjective vs. objective nuclear grading in renal cell carcinoma (RCC) are scarce.
- Accurate prognostic markers are crucial for tailoring RCC treatment.
Purpose of the Study:
- To compare subjective microscopical estimation with objective morphometric nuclear area measurement for RCC grading.
- To determine the prognostic utility of each method in RCC cases.
Main Methods:
- 94 RCC cases were graded using subjective estimation.
- Nuclear area was measured morphometrically.
- Prognostic groups were established based on nuclear area measurements.
Main Results:
- Both subjective and morphometric methods showed prognostic value.
- Morphometry yielded superior prognostic results compared to subjective estimation.
- Three prognostic groups were identified using morphometry with cutoffs at 28 µm² and 60 µm².
- Evaluation of nuclear area and diameter means/standard deviations separated favorable and unfavorable cases.
Conclusions:
- Morphometric nuclear analysis is highly valuable for prognostic and therapeutic studies in RCC.
- While morphometry offers improved stratification, broad value distribution limits exact prognostic group demarcation.