Korean J Dermatol.  1993 Feb;31(1):99-104.

Case of rat mite dermatitis

• Chae HJ
• Cho SH
• Cho BK
• Seo KI
• Eun HC

Abstract

We report three cases of rat mite dermatitis caused by Ornithonysus bacoti(Hirst, 1913), commonly referred to it as the tropicalrat mite. The first case, a 26-year old female had multiple pinhead sized vesicles with peripheral erythematous macule on the upper arms. The second case, a 34-year-old femal had multiple variable sized vesicles with erythematous base on the extremeties. The third case, a 43-year old male had multiple erythematous macules and papules with central punctum on the trunl: and extremities. Histopathologic sections from lesions of the first and second patient showed moderate perivascular lymphahistiocytic infiltration intermingled with some eosinophils. Causative mites, Ornithonyssus bacoti, female were collected around the skin lesion in rase 1, from the house dust in case 2 and furniture in case 3.

MeSH Terms

Adult
Animals
Arm
Dermatitis*
Dust
Eosinophils
Extremities
Female
Humans
Interior Design and Furnishings
Male
Mites*
Rats*
Skin
Dust