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. 2021 Mar 2;9(4):2477-2478.
doi: 10.1002/ccr3.3939. eCollection 2021 Apr.

A peristomal plaque of sudden occurrence

Michelangelo La Placa  1 , Diego Abbenante  1 , Massimiliano Pazzaglia  1 , Ambra Di Altobrando  1
Affiliations

A peristomal plaque of sudden occurrence

Michelangelo La Placa et al. Clin Case Rep. .

Abstract

Koebner phenomenon regards the formation of a psoriatic lesion after a trauma, including tattoo, insect bite or other injuries. Although this manifestation is not specific for psoriasis, physicians should be aware because early recognition may be helpful in making the diagnosis when present.

Keywords: Koebner phenomenon; colostomy bag; peristomal skin; psoriasis.

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Conflict of interest statement

The authors have no conflict of interest.

Figures

FIGURE 1
FIGURE 1
Well‐defined psoriatic plaque around the stoma
See this image and copyright information in PMC

References

    1. Yong‐Zhi J, Shi‐Rui L. Koebner phenomenon leading to the formation of new psoriatic lesions: evidences and mechanisms. Biosci Rep. 2019;39(12):BSR20193266. - PMC - PubMed
    1. Sagi L, Trau H. The Koebner phenomenon. Clin Dermatol. 2011;29(2):231‐236. - PubMed
    1. La Placa M, Passarini B. Subacute cutaneous lupus erythematosus after a tattoo. Clin Exp Dermatol. 2009;34(5):632‐633. - PubMed

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