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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 2

Chronic plaque psoriasis

Chronic plaque psoriasis is the most common form of the disease, and is typically found on the elbows, knees, scalp and lower back. There may be few or many thickened, erythematous plaques covered by a silvery white scale.

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