A Case of Pigmented Eccrine Poroma on the Scalp of Child / 대한피부과학회지

ABSTRACT

Eccrine poroma is a common benign tumor originating from the epidermal sweat duct units. It occurs primarily on feet and hands. However there have been some sporadic cases occurring in other areas, including the scalp. Eccrine poroma occurs mostly in people over 40 years of age, although it can occur at any ages. In general, eccrine poroma lacks melanin pigment clinically and melanocytes on microscopic examination, but either black or yellow skin, melanin granules and melanocytes can be found dispersed within the tumor. We report a case of pigmented eccrine poroma occuring on the scalp of 14-year-old girl. In our case, the patient was much younger than those of the usual onset age and the lesion was located on an unusual occuring site. In addition, the lesion contained melanocytes and melanins.