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[Functional and morphological analysis on GH producing adenomas with quantitative immunohistochemical method].

A Tsukada1, Y Tomono

  • 1Department of Neurosurgery, Tsukuba Medical Center Hospital.

Nihon Naibunpi Gakkai Zasshi
|April 20, 1988
PubMed
Summary

Quantitative immunohistochemistry of growth hormone (GH)-producing pituitary adenomas reveals a strong correlation between stained volume (SV) and serum GH levels, outperforming total adenoma volume for clinical significance in acromegaly.

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Area of Science:

  • Endocrinology
  • Oncology
  • Immunohistochemistry

Context:

  • Pituitary adenomas, particularly GH-producing ones, cause acromegaly.
  • Accurate assessment of tumor activity and hormone production is crucial for patient management.
  • Traditional methods may not fully capture the functional capacity of these tumors.

Purpose:

  • To quantitatively assess functioning GH-producing pituitary adenoma cells using immunohistochemistry.
  • To correlate quantitative immunohistochemical findings with clinical hormonal data (serum GH levels).
  • To determine the clinical significance of immunohistochemical studies in pituitary adenoma evaluation.

Summary:

  • GH-producing pituitary adenomas were quantitatively analyzed using anti-GH antibody immunohistochemistry.

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  • Adenoma volume and the ratio of GH-positive area (SAR) were measured; stained volume (SV) was calculated.
  • SV showed a high correlation (0.971) with preoperative serum GH levels, unlike total adenoma volume.

    • Impact:

    • Immunohistochemistry provides a valuable quantitative measure (SV) for assessing GH-producing pituitary adenoma activity.
    • This method offers superior correlation with serum GH levels compared to simple tumor volume.
    • Findings enhance the clinical significance of immunohistochemical studies for pituitary adenoma diagnosis and management.