Stomatitis nicotina palate that is caused by heat. As such, these sources tend to state that stomatitis nicotina is a premalignant condition. Some reports show that there is an increased risk of tonsillar cancer, lung cancer and tumors of the posterior oral cavity in people who develop stomatitis nicotina. The diagnosis is normally made based upon the clinical appearance and history. Tissue biopsy is not usually indicated unless there are areas of ulceration or localized erythroplakia (red patches). The differential diagnosis is with other causes of white lesions (see leukoplakia for a more complete discussion). Specific conditions which can produce a similar
Virtual body the disembodied essence of a person's mind in cyberspace and the consequent representation of a person's identity as a virtual body in cyberspace. The 'disembodiment' discourse focuses around allowing the mind to wander without the physical inhibitions of the body. This discourse is regarded as an expansion of classic theories such as astral projection or 'out-of-body experiences'. Subsequently, the virtual body is regarded as psychologically created essence that is virtually floating between information. This information in turn, according to theories, affects the mind and the virtual body but has no interaction with the physical body, which has deployed a "technological