Generalized bullae in a young girl with KRT6A‐related pachyonychia congenita
Pachyonychia congenita (PC) is a rare genodermatosis showing heterogeneity with five causative keratin genes (KRT6A, KRT6B, KRT6C, KRT16, or KRT17). Clinically, PC is characterized by hypertrophic onychodystrophy, painful palmoplantar keratoderma, oral leukokeratosis, and follicular hyperkeratosis. We describe an atypical case of PC in a young Chinese girl presenting with generalized bullae and identified a recurrent heterozygous missense mutation c.1406T > C (p.Leu469Pro) in KRT6A. This suggests that bullae may represent an important feature of KRT6A‐related PC.
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