Oral lesions can present clues of a systemic conditions—the appearance, the character 
of the lesions, the size, the duration, and the location of the lesions can give some insight as to a possible systemic implications. On the mission field, without all the desired tests and studies, it is very helpful to have an idea what lesions may be part of a systemic condition and what lesions are most likely to respond to local measures. Bring your "thinking cap" and lets have some fun. There will be time for questions and answers.