مدرس المادة
´Cancerous ulcers are one of several types of cancer that are grouped into a category called head and neck cancers. Oral cancer and other head and neck cancers are usually treated similarly.
´Oral cancers form when cells on the lips, or in the mouth, develop mutations in their DNA. A cell's DNA contains the instructions that tell the cell what to do. The changes caused by mutations tell cells to continue growing and dividing when healthy cells die.
´ Accumulating abnormal mouth cancer cells may form a tumor. Over time, it may spread inside the mouth, and to other areas of the head and neck, or other parts of the body.
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