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Quiz
Psoriasis – 16 cases

Psoriasis has common and uncommon presentations, with varying distribution and local features. A patient may have more than one type of psoriasis at the same or different times. The main characteristics of psoriatic lesions are symmetrical distribution, well-demarcated morphology, scaling and persisten ce.

For each of the sixteen 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.

Case 8

Erythrodermic psoriasis

Erythrodermic psoriasis refers to psoriasis that affects the entire skin surface or the majority of it. The differential diagnosis is erythroderma due to eczema, cutaneous T-cell lymphoma, pityriasis rubra pilaris or drug eruption.

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