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Common skin conditions
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Work contributed to the skin disorders discussed in this quiz.
For each of the twelve cases, study the image(s) and then answer the questions. You can click on the image to view a larger version if required.
Each case should take approximately 2 minutes to complete. There is a list of suggested further reading material at the end of the quiz.
Make a diagnosis.
Positive scratch test to venison blood in patient with contact urticaria
What is the patient's likely occupation?
Meat worker.
Scratch testing may reveal a Type 1 hypersensitivity reaction. A careful history and examination may suggest a combination of contact urticaria and dermatitis in meat workers and chefs. This may be due to protein contact dermatitis to a food substance. Contact urticaria to venison blood was demonstrated in a meat worker who presented with chronic hand dermatitis.