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SlideshowReport

Allergy skin testing.

Description
This patient’s forearm shows a number of wheals where the body’s immune response was triggered by the injected antigen. The size of the wheal corresponds to the degree of allergy to that antigen. No wheal formation means that the patient is not allergic to that antigen.  
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2 Comments
10 years ago
That looks painful.
9 years ago
I had this done on me, it looks more painful than it is.
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