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Oral leukoplakia: a scanning electron microscopic study of epithelial surface patterns
International Journal of Oral Surgery
|June 1, 1983
Summary
Scanning electron microscopy (SEM) reveals distinct surface cell changes in oral leukoplakia, correlating with dysplasia severity. This technique offers valuable diagnostic insights for oral mucosal lesions.
Area of Science:
- Oral pathology
- Biomedical microscopy
- Cellular morphology
Background:
- Oral leukoplakia is a potentially malignant disorder.
- Understanding epithelial changes is crucial for early diagnosis.
- Light microscopy has limitations in visualizing fine surface details.
Purpose of the Study:
- To investigate the utility of scanning electron microscopy (SEM) in characterizing oral leukoplakia.
- To compare SEM findings with light microscopy and normal oral mucosa.
- To correlate surface cell morphology with the degree of dysplasia.
Main Methods:
- Biopsies from various oral leukoplakia sites were analyzed using light and scanning electron microscopy.
- Surface patterns of epithelial cells and cut surface structures were examined.
- SEM findings were compared with published data on normal mucosa, leukoplakia, and carcinoma.
Main Results:
- Homogenous oral leukoplakia showed surface patterns similar to normal ortho- or parakeratotic cells.
- Dysplastic lesions exhibited irregular microvilli, swollen microridges, and pleomorphic cell shapes.
- Cellular changes, including desquamation, were observed in all cases.
Conclusions:
- SEM provides detailed insights into epithelial cell surface morphology in oral leukoplakia.
- Surface cell characteristics correlate with the degree of dysplasia.
- SEM is a valuable supplementary diagnostic tool for oral leukoplakia.