Quiz
Mixed diagnoses – 10 cases (11 of 11)

For each of the ten cases, study the image and then answer the questions. You can click on the image to view a larger version if required.

Each case should take approximately five minutes to complete. There is a list of suggested further reading material at the end of the quiz.

When you finish the quiz, you can download a certificate.

Case 7

This dairy farmer develops tender and irritable blisters and erythematous plaques on the dorsum of his hands and fingers every spring. They persist for several weeks or months before resolving.

What is the diagnosis?

Chilblains (perniosis)

What is the cause?

Exposure to cold and wet, for example when riding a motor cycle on the farm and milking.

What is the treatment?

Warm clothing should be worn, and the hands must be kept dry. Warming the hands in warm water before going outdoors in cold weather may prevent new lesions. Soothing antipruritic lotions may provide symptomatic relief.

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