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Nuclear DNA patterns in adrenal cortex proliferative lesions

S Díaz-Cano1, R González-Cámpora, J J Ríos-Martín

  • 1Department of Pathology, University of Seville, Spain.

Virchows Archiv. A, Pathological Anatomy and Histopathology
|January 1, 1993
PubMed
Summary

Nuclear shape and DNA ploidy are key indicators for predicting the behavior of adrenal gland tumors, aiding in treatment selection for hyperplasia, adenoma, and carcinoma.

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Area of Science:

  • Endocrinology
  • Oncology
  • Pathology

Background:

  • Morphological criteria for malignancy in adrenal tumors often conflict with their biological behavior, complicating treatment decisions.
  • Accurate diagnosis of adrenal proliferative lesions is crucial for effective patient management.

Purpose of the Study:

  • To investigate morphometric and DNA densitometric features of adrenal proliferative lesions.
  • To correlate these features with pathological diagnoses of hyperplasia, adenoma, and carcinoma.
  • To identify predictive factors for the biological course of these lesions.

Main Methods:

  • Slide cytometry was used to analyze morphometric and DNA densitometric features of 24 adrenal proliferative lesions.
  • Feulgen staining was applied to paraffin-embedded tissue samples.

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  • Stepwise discriminant analysis was employed to identify significant predictive factors.

    • Main Results:

    • Aneuploid cell lines were detected in all carcinomas, 5 of 8 adenomas, and 5 of 10 hyperplasias.
    • DNA nuclear content (ploidy) and mean nuclear area increased progressively from hyperplasia to carcinoma.
    • Shape factor, mean ploidy, and adrenal weight were identified as independent predictive factors, achieving 100% classification for adenomas, 83% for carcinomas, and 80% for hyperplasias.

    Conclusions:

    • Nuclear pleomorphism (shape factor) and DNA ploidy are crucial nuclear features for predicting the biological course of adrenal cortex lesions.
    • Tumor weight and nuclear shape factor differentiate adrenal cortex adenoma from carcinoma.
    • Mean ploidy distinguishes adrenal cortical hyperplasia from carcinoma.