From Classical to Unusual: Report on 5 Cases of Transient Reactive Aquagenic Pseudokeratoderma and Review of the Literature

Abstract: Transient reactive aquagenic pseudokeratoderma is characterized by transient whitish and translucent papules after water exposure in palms and soles. We report 5 additional cases and their histopathologic features. Patient 5 showed a topography that had not been reported before; this demonstrates that it is not an exclusive condition of palms and soles. Patient 2 presents very subtle clinical findings, making difficult the diagnosis. And the other 3 patients have a typical presentation. Transient reactive aquagenic pseudokeratoderma has heterogeneous clinical features; in some cases, histopathologic findings, although subtle, help to confirm the diagnosis.

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