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Malignant transformation in oral leukoplakia.
1Department of Oral Surgery and Oral Medicine, University of Oslo, Norway.
Scandinavian Journal of Dental Research
|December 1, 1987
Summary
Malignant transformation occurred in 7% of oral leukoplakia patients, rising to 8.9% over extended follow-up. Dysplasia, more common in women, was also linked to cancer risk.
Area of Science:
- Oral pathology
- Oncology
- Dermatology
Background:
- Oral leukoplakia is a potentially malignant disorder.
- Understanding malignant transformation rates is crucial for patient management.
Purpose of the Study:
- To determine the incidence of malignant transformation in oral leukoplakia.
- To investigate the relationship between dysplasia and cancer development.
Main Methods:
- Retrospective study of 157 patients diagnosed with oral leukoplakia between 1970-1980.
- Prospective follow-up for an additional 6 years.
- Biopsy analysis for dysplasia grading and correlation with clinical/etiological factors.
Main Results:
- Carcinoma developed in 11 patients (7% incidence).
- Extended follow-up revealed an 8.9% incidence of carcinoma.
- Dysplasia was present in 31.8% of biopsies, significantly more frequent in women.
- Dysplasia grade and cancer development correlated with clinical and etiological parameters.
Conclusions:
- Oral leukoplakia carries a significant risk of malignant transformation.
- Dysplasia is a key indicator for cancer development in oral leukoplakia.
- Clinical and etiological factors influence the progression of oral leukoplakia to cancer.