Eruptive vellus hair cyst and epidermoid cyst in a patient with pachyonychia congenita.
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.
Takeshita
T
T
Division of Dermatology, Saga Prefectural Hospital, Japan.
Takeshita
H
H
Irie
K
K
D001365:Axilla; D002648:Child; D003937:Diagnosis, Differential; D004476:Ectodermal Dysplasia / Q000150:complications*; D004814:Epidermal Cyst / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D005497:Follicular Cyst / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D009260:Nail Diseases / Q000150:complications* / Q000151:congenital / Q000473:pathology; D012871:Skin Diseases / Q000150:complications / Q000175:diagnosis* / Q000473:pathology