title: [Unusual Koebner phenomenon in psoriasis caused by varicella and UVB].
abstract: An isomorphic response is defined as a nonspecific skin stimulus eliciting a disease-specific skin reaction. We report on the development of the Koebner phenomenon in a 32 year old patient with psoriasis after skin testing with UVB at a dose above 0.055 J/cm2. In addition we describe a 28 years old patient who developed new psoriatic plaques in the areas affected by the virus after a varicella infection.
authors.affiliation: Dermatologische Klinik, Universitätsspitals, Zürich.
authors.forename: H
authors.initials: H
authors.lastname: Müller
authors.forename: J
authors.initials: J
authors.lastname: Fäh
authors.forename: R
authors.initials: R
authors.lastname: Dummer
mesh_terms: D000328:Adult; D002644:Chickenpox / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D017484:Dermatitis, Phototoxic / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D011565:Psoriasis / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D011855:Radiodermatitis / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D012867:Skin / Q000473:pathology; D014467:Ultraviolet Therapy / Q000009:adverse effects*