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.
Subject(s)
Adolescent , Child , Female , Humans , Age of Onset , Foot , Hand , Melanins , Melanocytes , Poroma , Scalp , Skin , SweatABSTRACT
Vitamin K1 is a naturally-occurring vitamin used to treat certain coagulation disorders, and cutaneous adverse reaction to vitamin K1 are infrequently reported. The cutaneous adverse reaction caused by vitamin K1 is called vitamin K1 dermatitis, and includes erythematous plaques, peudoscleroderma, contact dermatitis on epicutaneously exposed skin, and localized urticarial lesions. Vitamin K1 dermatitis can easily be overlooked because of it's low incidence and various morphology, therefore, awareness of past history is important. Most cases of vitamin K1 dermatitis previously reported have been associated with liver diseases, primarily alcoholic liver cirrhosis and viral hepatitis. However vitamin K1 dermatitis can be seen, not only in patients with liver function disturbances, but also in patients without liver disease. We report a case of vitamin K1 dermatitis in a woman who had no liver dysfunction (confirmed by skin test).
Subject(s)
Female , Humans , Dermatitis , Dermatitis, Contact , Hepatitis , Incidence , Liver , Liver Cirrhosis, Alcoholic , Liver Diseases , Skin , Skin Tests , Vitamin K 1 , VitaminsABSTRACT
Vitamin K1 is a naturally-occurring vitamin used to treat certain coagulation disorders, and cutaneous adverse reaction to vitamin K1 are infrequently reported. The cutaneous adverse reaction caused by vitamin K1 is called vitamin K1 dermatitis, and includes erythematous plaques, peudoscleroderma, contact dermatitis on epicutaneously exposed skin, and localized urticarial lesions. Vitamin K1 dermatitis can easily be overlooked because of it's low incidence and various morphology, therefore, awareness of past history is important. Most cases of vitamin K1 dermatitis previously reported have been associated with liver diseases, primarily alcoholic liver cirrhosis and viral hepatitis. However vitamin K1 dermatitis can be seen, not only in patients with liver function disturbances, but also in patients without liver disease. We report a case of vitamin K1 dermatitis in a woman who had no liver dysfunction (confirmed by skin test).