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 1

Guttate psoriasis

Guttate psoriasis often starts in childhood or young adulthood following streptococcal or upper respiratory infection. It presents with multiple red, slightly scaly plaques, predominantly on trunk and proximal limbs. This form of psoriasis often resolves within a few months, but may reappear at a later date or progress to plaque psoriasis.

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