No abstract

The exposure of animals to cigarette smoke for 60 days resulted in benign lesions. The duration of exposure was not enough to cause the development cancer, as confirmed by the negative expression of p53 protein in all slides examined. Analysis of ki-67 expression showed intense epithelial proliferation in response to damage.

No abstract

We presented a rare case of metastasis of melanoma in palatine tonsils alerting healthcare professionals to this diagnose in black oral lesions.

Alcohol and tobacco led to significant tongue and pharyngeal lesions that ranged from benign events to severe dysplasia. These findings confirm the deleterious effects of alcohol and tobacco on the airway mucosa.