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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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