RESUMEN
The authors describe a clinical case of cutaneous candidiasis in a dog with dermatological lesions, characterized by persistent alopecia, crusts, ulcers and scales. Predisposing factors such as the use of corticosteroids, the concomitan presence of an autoimmune disease (pemphigus foliaceus) and an infection of ehrlichiosis caused by Ehrlichia canis were observed. Histopathological findings included signs of orthokeratotic hyperkeratosis, moderate follicular keratosis and light epidermic acanthosis. The reactive process included an infiltrative superficial dermatitis and a mural folliculitis with prevalent participation of macrophages and lymphocytes. The application of PCR-Restriction Enzyme Analysis (REA) method on cutaneous specimens in veterinary medicine is an extremely interesting diagnostic tool. Its use, together with other techniques, such as mycologic, cytologic and histological examinations, allowed us to identify Candida albicans as aetiological agent in this particular case.
Asunto(s)
Candida albicans/aislamiento & purificación , Candidiasis Cutánea/veterinaria , ADN de Hongos/análisis , Enfermedades de los Perros/diagnóstico , Reacción en Cadena de la Polimerasa/veterinaria , Mapeo Restrictivo/veterinaria , Corticoesteroides/efectos adversos , Corticoesteroides/uso terapéutico , Animales , Enfermedades Autoinmunes/complicaciones , Enfermedades Autoinmunes/tratamiento farmacológico , Enfermedades Autoinmunes/veterinaria , Candida albicans/genética , Candidiasis Cutánea/diagnóstico , Candidiasis Cutánea/etiología , Candidiasis Cutánea/microbiología , Susceptibilidad a Enfermedades , Enfermedades de los Perros/etiología , Enfermedades de los Perros/microbiología , Perros , Ehrlichia canis/aislamiento & purificación , Ehrlichiosis/complicaciones , Ehrlichiosis/microbiología , Ehrlichiosis/veterinaria , Resultado Fatal , Huésped Inmunocomprometido , Masculino , Pénfigo/complicaciones , Pénfigo/tratamiento farmacológico , Pénfigo/veterinariaRESUMEN
A stray, young male, wire-haired pointing griffon dog, found in a street of Perugia (Italy), was examined in order to check his health status. Two oropharyngeal swabs were collected in 24 h and streaked onto Sabouraud agar and after 6 days the yeasts colonies were transferred onto Malt agar. Ascospores were observed on Potato Dextrose Agar medium. The major ubiquinone of an isolated yeast was identified as ubiquinone-9 (Q-9), and genetical analyses were performed together with the type strains of Debaryomyces hansenii (var. hansenii and var. fabry), C. psychrophila and D. nepalensis type strain. The base sequences of ITS1 and ITS2, and D1/D2 domains of LSU rDNA completely coincided with those of D. nepalensis. From these results, the isolated yeast was identified as D. nepalensis. RAPD patterns between the two strains were found to be identical. The results indicate the first colonization of D. nepalensis in a dog.