スズメサシダニ刺症

・スズメサシダニ刺症の2例を経験した．

・屋内で虫刺症様の皮疹を発症して皮疹の新生が続いている場合，家屋の鳥の巣の有無を確認する必要がある．

・ダニは背板毛が11対であることなどから，スズメサシダニと同定された．

・対症療法ならびにスズメの巣の除去で症状は改善し，その後再発はみられなかった．

（「症例のポイント」より）

　

Two cases of Dermanyssus hirundinis biting

　

Jin, Kayo1）Munakata, Takako1）Akita, Naomi1）Koga, Yuji2） 1）Department of Dermatology, Aomori city hospital 2）Koga clinic

　

Two Japanese woman, who were 34 and 69 years old, presented with pruritic red papules distributed on the inside of upper limbs or trunk and extremities, respectively. Interestingly, there were sparrow nests at the ventilator openings of both patient's house, in which we found many red mites are living. Careful observation identified the mites as Dermanyssus hirundinis. After administration of topical corticosteroid as well as removal of the nests and insecticide application, the eruption were improved rapidly without any recurrence.