Heinrich Köbner (1838-1904) was the founder of the dermatology clinic in Breslau (Germany, now Wroclaw, Poland) which was later led by the famous Neisser and Jadassohn. He described his eponymic phenomenon in 1872 in a case of psoriasis. This phenomenon was recognized by his contemporaries such as Kaposi and Darier « les frottements continus ou les pressions répétées semblent lui servir de caus...

Both shingles and psoriasis are common cutaneous diseases. About 25% of the psoriatic patients develop Koebner phenomenon (KP) after various injuries, and in rare instance, KP may occur at the site of healed or healing shingles.We report a 30-year-old man with 7-month history of scalp psoriasis who developed KP at the areas of developing shingles. Cutaneous examination revealed scaly erythemato...

An unusual and hitherto unreported complication of myelodysplastic syndrome is reported: the "pseudo-Koebner phenomenon." The skin lesions were characterised by exuberant "fleshy" masses at the sites of intravenous cannulation and skin trauma, and by histological evidence of chronic inflammation with focal necrosis and abscess formation. No evidence of dermal infiltration by malignant haemopoie...

The Koebner phenomenon (KP) was first introduced by Heinrich Koebner in the 1870s to describe the appearance of psoriatic lesions following trauma in psoriasis patients. KP has since been defined in numerous diseases, including necrobiosis lipoidica diabeticorum (NLD). Since most Koebnerized dermatological lesions can localise to a site of previous trauma, Weiss et al. (Eur Acad Dermatol Venere...