口腔扁平苔癬より発生したと思われる疣贅癌の1例 [in Japanese] A case of verrucous carcinoma arising from oral lichen planus [in Japanese]
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Oral lichen planus (OLP) is classified as a precancerous condition according to the WHO histological classification; however, the neoplastic process involved has not been fully elucidated. Only a few cases of malignant transformation of OLP have been reported in Japan, most of which lack sufficient histological data. Although leukoplakia is occasionally associated with verrucous carcinoma, very few reports have documented verrucous carcinoma arising from lichen planus. This report describes a case of verrucous carcinoma considered to have originated from OLP. The patient was a 44-year-old man with OLP. During long-term observation, a tumor developed at the left side of the lower lip and at the left side of the buccal mucosa. The results of histopathological tests confirmed verrucous carcinoma accompanied by OLP.
- Journal of Oral Surgery Society of Japan
Journal of Oral Surgery Society of Japan 50(3), 189-192, 2004-03-20
Japanese Society of Oral and Maxillofacial Surgeons