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50.9 MB (17.5 MB compressed)
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43.9 x 29.0 cm ⏐ 17.3 x 11.4 in (300dpi)
NIGEL DOWNER / SCIENCE PHOTO LIBRARY NIGEL DOWNER / SCIENCE PHOTO LIBRARY
Light micrograph through a section of tissue from a human lip showing lip and oral cavity cancer. This is a disease in which malignant (cancer) cells form in the lips or mouth. Tobacco and alcohol use can affect the risk of and oral cavity cancer. Signs include a sore lump on the lips and mouth. If treated early it's usually curable. Oral cancer can usually be detected by a doctor or dentist during a routine mouth examination.
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