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Piodermite profunda por Staphylococcus intermedius em eqüino

DOI: 10.1590/S0103-84782008005000019

Keywords: horse, alopecia, crusts, staphylococcal folliculitis.

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Abstract:

a case of one month of evolution, of an 8-year-old equine of undefined breed, presenting alopecic areas, crusts on the upper eyelid, forelimbs, hindlimbs, preputial region and mainly, on the neck and scapula is reported. pruritus was discrete. the histological analysis revealed pyogranulomatous dermatitis round blood vessels and adnexa, associated with epidermal hyperplasia, as well as orthokeratosis, parakeratosis and crusts. the follicular epithelium exhibited foci of spongiosis and exocytosis of neutrophils, with predominant chronic inflammation changes. bacterial culture identified staphylococcus intermedius, based on morphology, staining and biochemical tests positive for catalase, coagulase, glucose and aerobic acid production from mannitol. the equine was treated with dimethylsulfoxide, gentamicine and dexamethasone topically on a daily basis. although some lesions presented rapid regression (7 days), it took 13 months for the complete repair of those lesions of the neck and scapula.

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