ISSN 2398-2969      

Skin: cheyletiellosis

icanis

Introduction

  • Cause: infestation with Cheyletiella yasguri Cheyletiella yasguriC. parasitivorax or C. blakei.
  • Entire life cycle on host.
  • Signs: scaling with variable pruritus.
  • Human lesions often in groups of three.
  • Diagnosis: scaling, pruritus, papules.
  • Treatment: ectoparasiticides.
  • Prognosis: excellent.
    Print off the owner factsheet on 'Walking dandruff' (Cheyletiellosis) 'Walking dandruff' (Cheyletiellosis) to give to your client.

Pathogenesis

Pathophysiology

  • Mites feed on skin surface → excessive scale.
  • Hypersensitivity may develop.

Epidemiology

  • Eggs laid on hair shaft.
  • Adult mite can survive off host for initial period.

Diagnosis

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Treatment

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Prevention

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Mueller R S & Bettenay S V (2002) Efficacy of selamectin in the treatment of canine cheyletiellosis. Vet Rec 151 (25), 773 PubMed.
  • White S D, Rosychuk R A W & Fieseler K V (2001) Clinicopathologic findings, sensitivity to house dust mites and efficacy of milbemycin oxime treatment of dogs with Cheyletiella sp infestation. Vet Derm 12 (1), 13-18 PubMed.
  • Paradis M (1998) Ivermectin in small animal dermatology part II - extralabel applications. Comp Cont Ed Prac Vet 20 (4), 459-469 VetMedResource.
  • Chadwick A J (1997) Use of a 0.25 per cent fipronil pump spray formulation to treat canine cheyletiellosis. JSAP 38 (6), 261-262 PubMed.
  • Foley R H (1991) Parasitic mites of dogs and cats. Comp Cont Ed Prac Vet 13 (5), 783-800 VetMedResource.
  • Smith E K (1988) How to detect common skin mites through skin scrapings. Vet Med 83 (2), 165-170 VetMedResource.
  • Cohen S R (1980) Cheyetiella dermatitis. A mite infestation of rabbit, cat, dog, and man. Arch Dermatol 116 (4), 435-437 PubMed.

Other sources of information

  • Miller W H Jr, Griffin C E & Campbell KL (2013) Cheyletiellosis. In: Muller and Kirk's Small Animal Dermatology 7th editionW B Saunders, Philadelphia. pp 300-303.

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