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This quiz tests your diagnostic skills for blistering conditions affecting the feet.
Blisters are relatively common findings on one or both feet. They are formed by intraepidermal or subepidermal cellular separation. This may arise because of mechanical injury, infection, or immunological reaction to exogenous or autogenous factors. The blisters may be filled with clear or haemorrhagic fluid or pus.
For each of the ten 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.
When you finish the quiz, you can download a certificate.
What is the cause of the blistering?
Bullous pemphigoid
Describe the clinical features of this condition.
Bullous pemphigoid is a common immunobullous disease affecting the elderly. Large tense blisters arise in normal skin or within eczematous or urticated plaques and may be localised or, more frequently, generalised. They are quite common on the feet, but are more often found around flexures.