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Many faces of Koebner phenomenon in psoriasis
1Department of Dermatology, Venereology and Leprology Postgraduate Institute of Medical Education and Research, Chandigarh, India. someshgupta@yahoo.com
Indian Journal of Dermatology, Venereology and Leprology
|July 28, 2007
Summary
This study reports two rare cases of the Koebner phenomenon in psoriasis. Psoriatic lesions developed on keloids in one patient and on herpes zoster scars in another, highlighting unusual skin triggers.
Area of Science:
- Dermatology
- Immunology
Background:
- The Koebner phenomenon describes the isomorphic response of skin lesions in psoriasis.
- Common triggers include trauma, infection, and inflammation, but unusual stimuli are less understood.
Purpose of the Study:
- To report two unique cases of the Koebner phenomenon in psoriasis.
- To document unusual skin stimuli, specifically keloids and herpes zoster scars, as triggers for psoriatic lesions.
Main Methods:
- Case report of two male patients with psoriasis.
- Clinical observation and documentation of lesion development at specific skin sites.
Main Results:
- Patient 1: Psoriatic plaques developed on keloid scars in addition to palms, soles, and scalp.
- Patient 2: Psoriatic lesions appeared at the site of healed herpes zoster lesions.
- Keloid formation as a trigger for Koebner phenomenon in psoriasis is previously unreported.
Conclusions:
- Keloids and herpes zoster scars can act as unusual triggers for the Koebner phenomenon in psoriasis.
- These findings expand the understanding of Koebnerization in psoriasis and suggest a broader range of potential stimuli.
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