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Dermatopathology in respect to bovine cutaneous streptothricosis with clinical observations at Dinajpur of Bangladesh
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 Title & Authors
Dermatopathology in respect to bovine cutaneous streptothricosis with clinical observations at Dinajpur of Bangladesh
Juli, Sogra Banu Mst.; Hoque, Md. Fazlul; Zohara, Begum Fatema; Harun-Ur-Rashid, S.M.; Islam, Md. Nazrul; Rahman, Md. Siddiqur; Song, Hee-Jong;
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 Abstract
Dermatopathologic findings on cutaneous streptothricosis (bovine dermatophilosis) were conducted in Dinajpur of Bangladesh for one year. The animals were examined clinically at hospital during the physical visit of the affected animals and clinical manifestations and patients` history were recorded. The gross lesions were systematically examined, noted and categorized. An impression smear was made by the skin scraps, stained with Gram`s stain and examined microscopically for the presence of causative bacteria. The suitable sizes of skins of 3 animals typically affected with dermatophilosis were collected surgically from the animals, and prepared for the histopathological study. The cardinal clinical features and gross lesions were characterized as paint-brush cutaneous surface with matted hairs, scab and crust formation, roughened coat; istopathologically as hyperkeratosis, parakeratosis, typical "palisading encrustations", extensive proliferation of coccoid shaped, bluish coloured bacteria (zoospores) in the cells of the outer rootsheath of the hair follicles, separation of keratinized layer from the epidermal epithelium, epidermal hyperplasia, densely cellular dermis with moderate destruction of glandular structures. Coccoid shaped gram positive organisms which form multidimensional arrangement were also observed by impression smear. The clinical signs, gross lesions, morphology of the organisms, staining properties, and histopathological features of the affected skin were diagnostic criteria for the bovine cutaneous streptothricosis.
 Keywords
Dermatophilosis;Dermatopathology;Cutaneous streptothricosis;Bovine;
 Language
English
 Cited by
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