Idiopathic Palmoplantar Hidradenitis

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Abstract
Idiopathic plantar hidradenitis (IPH) is a recently described condition primarily affecting healthy children who develop tender lesions localized to the plantar or lateral aspects of the feet with histologic findings similar to those seen in neutrophilic eccrine hidradenitis (NEH), although with certain notable exceptions including the absence of syringosquamous metaplasia and the presence, in most cases, of neutrophilic abscesses adjacent to eccrine coils. Since its original description, three additional patients have been reported, one with palmoplantar lesions, extending the disease's clinical spectrum to include palmar as well as plantar surfaces. We report on a healthy 8-year-old girl with tender, erythematous nodules on palms and soles and review the literature on this subject.