The epidemiological and clinical aspects of Demodex injai demodicosis in dogs: a report of eight cases

Authors

  • Rayane Sol Amaral Silva Sgarbossa Pontifícia Universidade Católica do Paraná
  • Gisele Vieira Sechi Pontifícia Universidade Católica do Paraná
  • Bruna Duarte Pacheco Pontifícia Universidade Católica do Paraná
  • Stephany Buba Lucina Universidade Federal do Paraná
  • Maicon Roberto Paulo Universidade Federal do Paraná
  • Fabiana dos Santos Monti Pontifícia Universidade Católica do Paraná
  • Marconi Rodrigues de Farias Pontifícia Universidade Católica do Paraná

DOI:

https://doi.org/10.5433/1679-0359.2017v38n5p3387

Keywords:

Canine, Clinical signs, Demodectic mange, Dermatopathy, Mites.

Abstract

The mite Demodex injai causes demodicosis, an uncommon, chronic, and recurrent parasitic dermatopathy in dogs. Demodicosis is characterized by an excessive proliferation of the Demodex injai mite in the pilosebaceous unit. Typically, demodicosis occurs in adults, and is associated with an underlying disease or a specific host immunodeficiency. Here, we describe the epidemiological, clinical, dermatological, and therapeutic aspects of Demodex injai demodicosis in dogs (n=8) at the Hospital Unit for Companion Animals of the Pontifical Catholic University of Paraná in Brazil. The affected dogs were predominantly purebred, had a mean age of eight years, and showed no gender predisposition. The lesions were predominantly alopecic and erythematous-desquamatory, associated with follicular dyskeratosis and greasiness of the coat, and mainly affected the facial region, in addition to the back and limbs. The animals had a history of allergic, dyskeratotic, endocrine, neoplastic, and immunosuppressive comorbidities. The diagnosis of demodicosis was based on multiple skin scrapings, trichogram, and acetate tape impression of the lesion areas, macroscopic observation, and morphological characterization of the mite. Macrocyclic lactones were effectively used for treatment in most cases; however, improvement of the condition may be related to adjunctive treatment of the underlying disease.

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Author Biographies

Rayane Sol Amaral Silva Sgarbossa, Pontifícia Universidade Católica do Paraná

Discente, Programa de Pós-Graduação em Ciência Animal, Pontifícia Universidade Católica do Paraná, PUCPR, Curitiba, PR, Brasil.

Gisele Vieira Sechi, Pontifícia Universidade Católica do Paraná

Discente, Programa de Pós-Graduação em Ciência Animal, Pontifícia Universidade Católica do Paraná, PUCPR, Curitiba, PR, Brasil.

Bruna Duarte Pacheco, Pontifícia Universidade Católica do Paraná

Discente, Programa de Pós-Graduação em Ciência Animal, Pontifícia Universidade Católica do Paraná, PUCPR, Curitiba, PR, Brasil.

Stephany Buba Lucina, Universidade Federal do Paraná

Discente, Programa de Pós-Graduação em Ciências Veterinárias, Universidade Federal do Paraná, UFPR, Curitiba, PR, Brasil.

Maicon Roberto Paulo, Universidade Federal do Paraná

Médico Veterinário Autônomo, Curitiba, PR, Brasil.

Fabiana dos Santos Monti, Pontifícia Universidade Católica do Paraná

Discente, Programa de Pós-Graduação em Ciência Animal, Pontifícia Universidade Católica do Paraná, PUCPR, Curitiba, PR, Brasil.

Marconi Rodrigues de Farias, Pontifícia Universidade Católica do Paraná

Prof., Programa de Pós-Graduação em Ciência Animal, PUCPR, Curitiba, PR, Brasil.

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Published

2017-10-03

How to Cite

Sgarbossa, R. S. A. S., Sechi, G. V., Pacheco, B. D., Lucina, S. B., Paulo, M. R., Monti, F. dos S., & Farias, M. R. de. (2017). The epidemiological and clinical aspects of Demodex injai demodicosis in dogs: a report of eight cases. Semina: Ciências Agrárias, 38(5), 3387–3394. https://doi.org/10.5433/1679-0359.2017v38n5p3387

Issue

Section

Case Reports

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