Isolated psoriatic plaque over burn scar- A rare presentation of Koebner’s phenomenon

Abstract

Koebner’s phenomenon is well known in patients of chronic plaque psoriasis. It usually results from physical or chemical trauma. Generally lesions resulting from trauma are present in a linear fashion along with other primary lesions of psoriasis. We report a rare case of psoriasis in which a single plaque was present for last 5 years at the site of previous burn. Patient did not have any lesions of psoriasis elsewhere on the body. This report support traditional hypothesis that trauma can trigger psoriasis in a psoriasis naïve patient and a single plaque at burn site can have psoriasis as a differential diagnosis.