C. Molluscum Contagiosum
D. All of the above
Ans:D. All ofthe above.
Koebner Phenomenon is shown in the image.
- The Koebner phenomenon or the isomorphic response, refers to skin lesions appearing on lines of trauma.
- The Koebner phenomenon may result from either a linear exposure or irritation.
- Conditions demonstrating linear lesions after a linear exposure to a causative agent include: molluscum contagiosum, warts and toxicodendron dermatitis (a dermatitis caused by a genus of plants including poison ivy).
- Causes of the Koebner phenomenon that are secondary to scratching rather than an infective or chemical cause include vitiligo, psoriasis, lichen planus, lichen nitidus, pityriasis rubra pilaris, and keratosis follicularis (Darier disease)