Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons · 1995
Mucosal condition of the oral cavity and sites of origin of squamous cell carcinoma.
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Suei Y, Tanimoto K, Taguchi A, Wada T
Аннотация
PURPOSE: This study investigated the clinical appearance of the affected mucosa in patients with squamous cell carcinoma (SCC) in the oral and oropharyngeal region.
PATIENTS AND METHODS: The mucosal conditions of 396 patients was classified into two types. Type A, showing ulcer formation and/or tumor formation, and type B, showing only mucosal enlargement without any other abnormality.
RESULTS: Type A was detected in the oral cavity and oropharynx, and type B was observed only in the upper and lower alveolus and gingiva. Of 14 type B patients histologically evaluated for the relationship between the tumor cells and surface oral epithelium, 10 showed a disconnection between the epithelium and the tumor cells, whereas in two the tumor cells extended into the epithelium.
CONCLUSION: It was concluded that SCC of type B is not of oral epithelial origin, but is of maxillary sinus epithelium or odontogenic cell origin. In the mandible, type B SCC originates from odontogenic epithelium (odontogenic carcinoma).
PATIENTS AND METHODS: The mucosal conditions of 396 patients was classified into two types. Type A, showing ulcer formation and/or tumor formation, and type B, showing only mucosal enlargement without any other abnormality.
RESULTS: Type A was detected in the oral cavity and oropharynx, and type B was observed only in the upper and lower alveolus and gingiva. Of 14 type B patients histologically evaluated for the relationship between the tumor cells and surface oral epithelium, 10 showed a disconnection between the epithelium and the tumor cells, whereas in two the tumor cells extended into the epithelium.
CONCLUSION: It was concluded that SCC of type B is not of oral epithelial origin, but is of maxillary sinus epithelium or odontogenic cell origin. In the mandible, type B SCC originates from odontogenic epithelium (odontogenic carcinoma).