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SlideshowReport

Cystic fibrosis

Description
The hand of a child with cystic fibrosis compared to a normal adult hand (beneath). Cyanosis and clubbing of the fingertips are common in cystic fibrosis. A low level of oxygen causes blood in the arteries to be bluish rather than bright red, and the skin color is cyanotic. The chronic lack of oxygen causes the fingertips and fingernails to grow abnormally.  
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