Abstract
We report the first case of pachyonychia congenita (PC) associated with both eruptive vellus hair cyst (EVHC) and epidermoid cyst. The patient is a 12-year-old Japanese girl who presented with two natal teeth at birth. She had thickening and discoloration of the fingernails and toenails, plantar hyperkeratosis, palmar-plantar hyperhidrosis and multiple cutaneous cysts. Histologic examination revealed EVHC and epidermoid cyst.
MeSH terms
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Axilla
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Child
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Diagnosis, Differential
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Ectodermal Dysplasia / complications*
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Epidermal Cyst / complications
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Epidermal Cyst / diagnosis*
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Epidermal Cyst / pathology
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Female
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Follicular Cyst / complications
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Follicular Cyst / diagnosis*
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Follicular Cyst / pathology
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Humans
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Nail Diseases / complications*
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Nail Diseases / congenital
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Nail Diseases / pathology
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Skin Diseases / complications
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Skin Diseases / diagnosis*
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Skin Diseases / pathology