by 
dugsfrend
ANSWERS: 3
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Well, "in medicine, carcinoma is any cancer that arises from epithelial cells. It is malignant by definition: carcinomas invade surrounding tissues and organs, and may spread to lymph nodes and distal sites (metastasis). Carcinoma in situ (CIS) is a pre-malignant condition, in which cytological signs of malignancy are present, but there is no histological evidence of invasion through the epithelial basement membrane." So I assume oral carcinoma is that ^^, but in the mouth. http://en.wikipedia.org/wiki/Carcinoma
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Mouth cancer, usualy followed by large parts of the jaw/cheek/tongue being removed, if it is not diagnosed early enough.
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Looks like this.
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