Our experiences demonstrate that although PPG has been most often reported in patients with IBD, it may occur in the absence of IBD. Biopsy of the skin lesion is not diagnostic but excludes other causes. Relocation of the stoma may be associated with a new ulceration and should be avoided. Trauma to the skin of a predisposed patient may elicit the pustules or ulcerations associated with pathergy. JAMA. 2000;284:1546-1548.

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Not Available Disclosure: Study supported by Celgene.

Assessment for joint disease in psoriasis patients being treated at dermatology clinics may facilitate earlier psoriatic arthritis diagnosis and treatment initiation, which may prevent disability and other negative impacts.