DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Telangiectasia. Two-year-old boy with superficial venous telangiectasia on his left hand. This condition results in the blood vessels near to the skin's surface becoming enlarged, giving the skin a mottled red appearance. It is caused by the loss of the skin's supporting tissue. This can be due to overexposure to sunlight. In adults, it can be due to prolonged excessive consumption of alcohol over many years. Sometimes there is no obvious cause. Telangiectasia is not detrimental to the sufferer in most cases.
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