Occurrence of Geotrichum candidum in Two Cases of Canine Dermatitis

두 마리 개의 피부염에 있어서 Geotrichum candidum의 존재

  • Mahendra Pal (Department of Veterinary Public Health, College of Veterinary Science, Gujarat Agricultural University) ;
  • Chang woo Lee (Department of Clinical Pathology, College of Veterinary Medicine, Seoul National University) ;
  • Naonori Matsusaka (Department of Veterinary Public Health, School of Veterinary Medicin, Iwate University)
  • Published : 2002.12.01

Abstract

Ceotrichum candidum was identified from 2 dogs among 52 dogs which had various dermatological problems. One was 5-month-old male Labrador and the other was 7-month-old female German Shepherd. The diagnosis was confirmed by direct microscopy of the specimen as well as cultured isolation of the fungus from the cutaneous lesions. The. organism showed septate hyphae and rectangular to cylindrical arthrospores and no blastospores. Urea was not utilized and no assimilation of maltose was observed. Clinical improvement was occurred by application of 2% gentian violet and 2% miconazole solutions. It is suggested that this organism should be included in the differential diagnosis of canine dermatitis.

다양한 피부병을 갖고 있는 52두의 개에 대해 Geotrichum candidum의 감염율을 조사하였다 피부가검물은 15% KOH용액으로 케라틴을 용해한 후 현미경으로 직접 검사하였다. 또한 Sabouraud dextrose agar, chloramphenicol을 함유한 Sabouraud dextrose agar 및 brain heart infusion agar에 피부가검물을 접종하여 $25^{\circ}C와\;37^{\circ}C$에서 배양하여 원인균을 배양하고, 배양물을 현미경으로 검사하였다. 52두 중 2두의 가검물에 대한 직접 현미경 검사에서 직사각형 내지 원기둥형의 분절포자와 격벽이 있는 균사가 관찰되어 Geotrichum 감염이 제시되었다. 이 가검물의 배양물에서 균사와 $4-8\;\mu\textrm{m}$의 포자가 관찰되었다. 또한 이 진균은 분아포자를 생성하지 않고, 요소의 이용과 맥아당의 동화작용을 나타내지 않았다. 이 두 마리리의 피부염은 2% gentian violet또는 2% miconazole 의 국소적용에 임상적인 차도를 나타내었다 Geotrichum candidum은 사물기생성 진균이지만 개에 있어서 피부염의 원인이 될 수 있기 때문에 피부염 감별진단에 포함시켜야 할 것임을 제시하였다.

Keywords

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