A Case of Eosinophilic Pustuler Folliculitis on the Scalp

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  • 被髪頭部に生じた好酸球性膿疱性毛包炎の１例
  • 症例 被髪頭部に生じた好酸球性膿疱性毛包炎の1例
  • ショウレイ ヒハツ トウブ ニ ショウジタ コウサンキュウセイ ノウホウセイ モウホウエン ノ 1レイ

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A 42-year-old woman noticed itchy papules in the occipital region 3 months ago. Since the papules increased gradually in number, she visited a nearby hospital, where she received treatment under the diagnosis of folliculitis. However, since she saw no satisfactory response to the treatment, she visited our department. Histopathological examination of biopsy specimens obtained from the lesions revealed the presence of spongiosis in part of the epidermis and perifollicular dense inflammatory cell infiltration with destruction of the follicular wall. The inflammatory cell infiltrate consisted mainly of lymphocytes, histiocytes and eosinophils. Treatment with indomethacin at a daily dose of 75 mg was started; however, since no improvement of itchy papules was noted in response to this treatment, the drug was switched to DDS at the dose of 75 mg daily. One month later, the eruption had almost completely disappeared. Only a limited number of cases of eruption on the head have been reported from Japan, and our present case was the first one presenting with lesions localized to the head that were covered with hair. When encountering cases of papules and pustules on the head covered with hair associated with pruritus, the possibility of the diagnosis in the present case should be taken into consideration.

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