HISTOPATHOLOGICAL STUDIES ON THE ORAL PRECANCEROUS LESIONS

Cho,  Han-Kuk

J Korean Dent Assoc > Volume 9(6); 1971 > Article

Journal of Korean Dental Association 1971;9(6):311-315.
Published online June 30, 1971.

구강전암병소에 관한 병리조직학적연구

조한국

서울대학교 치과대학 구강병리학교실

HISTOPATHOLOGICAL STUDIES ON THE ORAL PRECANCEROUS LESIONS

Han-Kuk Cho

Dept. of Oral Pathology, College of Dentistry, Seoul National University

Abstract

The author has studied histopathologically on the 24 cases of precancerous lesions 14 cases of benigh tumors and 3 cases of odontogenic cysts transformed to malignancy. The results are as follows: 1. On the 4 cases of leukoplakias, could observed precancerous changes such as hyperkeratosis, dyskeratosis and indistinct basement membrane. 2. The proliferative epithelium in the chronic inflammatory gingivitis, revealed precancerous conditions such as loss of polarity, mitotic figures with cellular pleomorphism and dyskeratosis. 3. The proliferative epithelial islands in the 2 cases of epitheliated dental granulomas could observe the cellualr malignancy. 4. Oral tuberculous lesions can become precancerous lesions inducing cancerous proliferation. 5. Oral benign tumors such as fibromas, salivary mixed tumors and ameloblastomas can be regarded as precancerous condition that the more recurrent they become the more likely they may be to transforme malignancy. 6. The proliferation of covering epithelium in the odontogenic cysts needs attention as its possible transformation to a precancerous condition.