Correlation between stage and grade in prostatic adenocarcinoma: A morphometric study

Francis E Sharkey, D. M. Dusenbery, J. E. Moyer, J. D. Barry

Research output: Contribution to journalArticle

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Abstract

The independence of stage and grade as prognostic factors for prostatic carcinoma is unclear. Previous studies have been hampered by both the uncertain reproducibility of subjective grading systems and the lack of a scalar grading measure, and have reached opposing conclusions. To examine this question, we quantified via point-counting the per cent of tumor cells showing glandular differentiation in 90 cases of primary prostatic adenocarcinoma. Patient records were examined retrospectively to verify both the stage at presentation and follow-up. Stage and morphometric grade were found to be inversely correlated, (p < 0.001), with the mean per cent of tumor cells showing glandular differentiation at each stage as follows: A - 71 per cent; B - 59 per cent; C - 33 per cent; D - 28 per cent. Analysis of variance revealed these differences to be significant (p < 0.001), and Newman-Keuls test showed significant differences between the following stage pairs: A-C, A-D, B-C, B-D (p < 0.05). In spite of the marked correlation between stage and grade, multiple regression analysis showed them to be independent predictors of survival, although their combined effect was not much greater than that of morphometric grading alone. We conclude that, for prostatic carcinoma the close correlation of stage and grade makes it difficult to combine them in determining the prognosis of the individual patient, although both together may be useful in studies of large populations.

Original languageEnglish (US)
Pages (from-to)602-605
Number of pages4
JournalJournal of Urology
Volume132
Issue number3
StatePublished - 1984
Externally publishedYes

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Adenocarcinoma
Carcinoma
Dilatation and Curettage
Neoplasms
Analysis of Variance
Regression Analysis
Survival
Population

ASJC Scopus subject areas

  • Urology

Cite this

Sharkey, F. E., Dusenbery, D. M., Moyer, J. E., & Barry, J. D. (1984). Correlation between stage and grade in prostatic adenocarcinoma: A morphometric study. Journal of Urology, 132(3), 602-605.

Correlation between stage and grade in prostatic adenocarcinoma : A morphometric study. / Sharkey, Francis E; Dusenbery, D. M.; Moyer, J. E.; Barry, J. D.

In: Journal of Urology, Vol. 132, No. 3, 1984, p. 602-605.

Research output: Contribution to journalArticle

Sharkey, FE, Dusenbery, DM, Moyer, JE & Barry, JD 1984, 'Correlation between stage and grade in prostatic adenocarcinoma: A morphometric study', Journal of Urology, vol. 132, no. 3, pp. 602-605.
Sharkey FE, Dusenbery DM, Moyer JE, Barry JD. Correlation between stage and grade in prostatic adenocarcinoma: A morphometric study. Journal of Urology. 1984;132(3):602-605.
Sharkey, Francis E ; Dusenbery, D. M. ; Moyer, J. E. ; Barry, J. D. / Correlation between stage and grade in prostatic adenocarcinoma : A morphometric study. In: Journal of Urology. 1984 ; Vol. 132, No. 3. pp. 602-605.
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