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 symmetricaldistribution, 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.