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Blood vessel morphometry in human colorectal lesions
1Department of Anatomy, Faculty of Medicine, University of Hong Kong, Hong Kong.
Histology and Histopathology
|July 1, 1995
Summary
Quantifying blood vessel architecture in colorectal tissues reveals significant morphological changes. These changes, particularly in volume density and vessel area, correlate with cancer progression from normal to adenocarcinoma stages.
Area of Science:
- Gastroenterology
- Oncology
- Pathology
Background:
- Tumor neovascularization is qualitatively known.
- Objective assessment of vascular architecture in colorectal lesions is needed.
Purpose of the Study:
- Quantify blood vessel parameters in colorectal tissues.
- Detect subtle morphological changes in vascular architecture.
- Correlate changes with colorectal pathological stages.
Main Methods:
- Collected colorectal tissue samples (normal, premalignant, polyp, adenocarcinoma).
- Processed tissues for electron microscopy and stained semithin sections.
- Quantified blood vessel parameters (volume density, numerical density, length density, mean transverse sectional area) using image analysis.
Main Results:
- Significant differences in volume density and mean transverse sectional area were found between most pathological groups.
- No significant differences in numerical density or length density were observed.
- Mean values for all quantified parameters were highest in adenocarcinoma.
Conclusions:
- Objective quantification of vascular architecture reveals significant changes in colorectal lesions.
- Morphometric parameters, specifically volume density and mean transverse sectional area, can differentiate between normal, premalignant, and malignant colorectal tissues.
- These findings support the use of quantitative vascular analysis in understanding colorectal cancer progression.