BCG keloid scar on the arm of a 16 week old baby. A keloid scar is a scar that fills with the protein collagen. In a normal scar the collagen breaks down once the wound has healed,but this fails to happen during the formation of a keloid scar. The scar expands from its original boundaries,and continues to grow even after the wound has healed. The Bacillus Calmette-Guerin (BCG) vaccine protects against tuberculosis | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 3328 px × 5276 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : |
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