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OJVRTM

Online Journal of Veterinary Research©

Volume 19(9): 623-631, 2015.


 

 Macro and micro morphology of skin wounds from dogs with visceral leishmaniasis.

 

1Luciana. R. Camargos (Ms), 2Romulo. S. A. Eloi (Ms), 3Patricia. M. Bastos (MDV), 3Andre. R. C. Barreto-Vianna (Ms), 3Eduardo. M. M. Lima*(PhD)

 

1Programa de Pós-Graduação em Saúde Animal, Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília (UnB), ICC Sul, Campus Universitário Darcy Ribeiro, Cx. Postal 4508, Brasília, DF 70910-970, 2Universidade do Estado do Rio de Janeiro, Laboratório de Morfometria, Metabolismo e Doenças Cardiovasculares- LMMC. Blv. 28 de Setembro, 87 Vila Isabel, Rio de Janeiro, 3Universidade Federal de Minas Gerais, Departamento Clínica e Cirurgia Veterinárias- Av. Antônio Carlos, 6627 Pampulha 30123-970 - Belo Horizonte, MG - Brazil - Caixa-postal: 567. Brazil

 

ABSTRACT

 

Camargos LR, Eloi RSA, Bastos PM, Barreto-Vianna ARC, Lima EMM., Macro and micro morphology of skin wounds from dogs with visceral leishmaniasis, Onl J Vet Res., 19(9): 623-631, 2015. Thirty one skin samples from 20 dogs with visceral leismaniasis presented exfoliative dermatitis, alopecia, hypotrichosis, crusts, nodules, ulcers, erythema, depigmentation, hyperpigmentation and/or hyperkeratosis. Samples were subjected to microscopic and histo-morphometric examinations with detection and distinction of collagen types I and III. Affected parts included the head (40%), limbs (21%), thorax (16%), diffuse (9%), abdomen (5%), pelvis (5%) and cervix (4%). The most frequent macro wounds were crusted dermatitis and hypotrichosis. Histiocytic infiltration predominated with the amastigote form occurring in 48% of dogs. Non-inflammatory wounds showed collagenosis, crust and orthokeratotic hyperkeratosis. Mature collagen  (60%) predominated (P < 0.05) over immature collagen (9%) on skin. Collagen increased in type III but decreased in type I in samples with and without amastigotes, respectively.

 

Keywords:  Amastigote, canine, collagen, leishmaniasis, skin.


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