Pachyonychia congenita (PC) is a rare genodermatosis characterized by focal palmoplantar keratoderma, severe plantar pain and dystrophic nails. Anecdotally, some patients with PC have erythematous soles and episodic burning plantar pain, indicative of secondary erythromelalgia. This study aimed to identify the prevalence and genetic predictors of erythromelalgia in PC.
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McCarthy et al. (2024) studied this question.
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