Quantitative morphometric analysis of the microcirculation in prostate carcinoma.

Area of Science:

• Oncology
• Pathology
• Urology

Background:

• Neoplasms often induce capillary neovascularization, potentially indicating aggressive behavior.
• Neovascularity plays a crucial role in tumor growth and metastasis.
• Understanding vascular patterns in prostate tissue is vital for diagnosis and prognosis.

Purpose of the Study:

• To investigate and quantify neovascularity in benign and malignant prostate tissue.
• To compare microvessel density between cancerous and normal prostatic tissue.
• To explore the correlation between microvessel density and the pathologic stage of prostate cancer.

Main Methods:

• Immunohistochemical visualization of microvessel profiles using Factor VIII antibodies.
• Quantification of microvessel density via computerized image analysis (Optimas system).
• Comparison of microvessel density in benign and malignant portions of radical prostatectomy specimens.

Main Results:

• Significantly higher vascular density was observed in cancerous prostate tissue compared to benign tissue (ratio = 2.02, p < 0.001).
• Microvessel distribution was random in malignancy versus periglandular in benign tissue.
• Increased microvessel density correlated with advanced pathologic stage, with higher densities found in more advanced cancers.

Conclusions:

• Prostatic carcinoma demonstrates increased vascularity relative to benign tissue.
• Microvessel density is correlated with the pathologic stage of prostate cancer.
• Microvessel density shows potential as a prognostic indicator for prostate cancer.