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Dermatology Online Journal

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Circumscribed palmoplantar hypokeratosis: a case report and review of the literature


We describe an 84-year-old man presenting with a solitary, well-circumscribed, chronic erosion of the sole. Histopathologic examination confirmed diagnosis of circumscribed palmoplantar hypokeratosis. Circumscribed palmoplantar hypokeratosis is a rare and benign condition of unknown etiology presenting as an erosion on the palms or soles. Although lesions are typically asymptomatic, the entity is important for dermatologists and providers in other specialties to recognize, especially considering a differential diagnosis that includes neoplasia.

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