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KMID : 0670820140190020052
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Korean Journal of Medical Mycology
2014 Volume.19 No. 2 p.52 ~ p.57
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Simultaneous Occurrence of Tinea corporis Caused by Microsporum canis in a Grandmother and a Granddaughter
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Lee Bo-In
Lee Ji-Hyun
Lee Jun-Young
Park Young-Min
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Abstract
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Microsporum (M.) canis is one of the zoophilic dermatophytes which can cause ringworm in cats and dogs and is responsible for 3~30% of tinea corporis and tinea capitis in human. It is most likely transmitted by contact with infected animals, but rare cases of person-to-person transmission and an outbreak among school girls have also been reported. Herein we report on interesting cases of tinea corporis caused by M. canis in a grandmother and a granddaughter. A 63-year-old woman presented with pruritic, scaly, erythematous plaques on the post. neck and trunk which had started 2 months ago. Also her 9-year-old granddaughter presented with pruritic, annular, erythematous plaques on chest and back
for 7 days. They denied contact with animals. KOH smear showed several hyphaes on microscope. Fungus culture on potato dextrose agar showed growth of colonies with whitish fluffy surface and radial folds, the dorsal surface of the colonies showed golden-brown color which were identified as M. canis in both patients. As for the grandmother the lesions improved with oral itraconazole 200 mg/day for 7 days and topical antifungal cream for 5 weeks which resulted in marked improvement of the lesions.
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KEYWORD
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Microsporum canis, Tinea corporis
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