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Touch preparation cytological evaluation of radical prostatectomy specimens
M S Pearle1, R Oyasu, D Hidvegi
1Department of Urology, Northwestern University Medical School, Chicago, Illinois.
The Journal of Urology
|July 1, 1994
Summary
Touch preparation cytology offers a more sensitive method than standard histology for detecting positive surgical margins in prostate cancer patients. This technique may improve prediction of disease recurrence after radical prostatectomy.
Area of Science:
- Urology
- Oncology
- Pathology
Background:
- Histological techniques for predicting prostate cancer recurrence after radical prostatectomy are insufficient.
- Lack of uniform interpretation hampers histological findings characterization.
Purpose of the Study:
- To compare touch preparation cytology with standard histology for detecting positive surgical margins in prostate cancer.
- To evaluate the utility of touch preparation cytology in predicting disease progression.
Main Methods:
- Prospective study of 92 patients undergoing radical prostatectomy for clinical stages A and B prostate cancer.
- Touch preparation cytology of surgical margins compared to standard histological analysis.
- Evaluation of 47 stage B, 43 stage C, and 2 stage D specimens.
Main Results:
- 29% of pathological stage B specimens were upstaged to C upon review.
- Positive margins detected by cytology: 32% (stage B), 47% (stage C), 100% (stage D).
- 50% of non-stage D patients with elevated PSA had positive cytology, including one with organ-confined disease.
Conclusions:
- Touch preparation cytology is more sensitive than standard histology in identifying positive surgical margins in prostate cancer.
- Cytology may aid in predicting disease recurrence and patient outcomes post-prostatectomy.
- Further long-term correlation with patient course is needed to establish its role in management.