Red marks on the back of a 47 year old man in a case of dermographism, also known as dermatographic urticaria. This is an allergic reaction where the skin is hypersensitive to touch. Normally this sort of allergic response is only associated with some irritants but in dermatographism any object can evoke a response. This cause of this case is unknown. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Marazzi, Dr. P. |
Taille de l’image : | 5520 px × 3680 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : |
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