DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Basal cell carcinoma. First of two images. Close-up of a basal cell carcinoma (or rodent ulcer) on the temple of a 92 year-old female patient. The carcinoma is seen with a typical rolled edge and central scabbed area. Basal cell carcinomas are the most common form of skin cancer among fair-skinned people, mostly affecting the elderly. They usually appear on the face and are thought to be caused by ultraviolet radiation in sunlight. Although they slowly destroy the surrounding tissue, they seldom spread to other parts of the body. Treatments include surgery, cryosurgery or radiotherapy. See M131/283 for image of rodent ulcer after radiotherapy treatment.
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