Pseudomelanomas Following Stevens–Johnson Syndrome

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Abstract

In this report, we present a novel case of pseudomelanoma, similar to that seen in a recurrent/traumatized nevus, in pre-existing nevi in a 36-year-old man a few months after recovering from an episode of severe Stevens–Johnson syndrome. The mechanism responsible for the atypical transformation of these nevi is likely the release of cytokines and growth factors in the microenvironment during the repair/regeneration process. It is important to be aware of this phenomenon, and specific inquiry about potential recent blistering skin disorder in addition to the other causes of trauma should be made when dealing with cases of pseudomelanoma to avoid misdiagnosis.

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