Pathological investigations on anthracosis in cattle

Özcan, Kazım Serhan; Beytut, Enver

doi:10.1136/vr.149.3.90-b

Cited by 3 publications

References 12 publications

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Lungs

2007

Jubb, Kennedy &Amp; Palmer's Pathology of Domestic Animals

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Laryngeal chondritis (arytenoid chondropathy) occurs in young horses, as well as sheep and calves. It is characterized by ulceration ofmucosa at the rostral margin of the arytenoid cartilage, immediately caudal to the attachment of the vocal fold.The lesions are variable and may consist of a granuloma, purulent tract, or noninflammatory necrosis of the cartilage. Inflamed lesions may result in laryngeal edema that obstructs airflow. The pathogenesis is not known, but may involve mucosal trauma as the larynx closes forcefully in rapidly breathing animals.Small foci of mineralization, often with accompanying granulomatous inflammation, occur in the lamina propria of the dorsal trachea and ventral turbinates of adult pigs.The cause is not known. Foci of chronic polypoid tracheitis are occasionally observed in dogs and cats. The thickening may be sufficient to cause significant stenosis and dyspnea. The cause is unknown but the various pathogenetic factors involved are probably similar to those responsible for nasal polyps. Squamous metaplasia of tracheal epithelium is a feature of vitamin A deficiency and severe iodide toxicosis. Parasitic diseases of the larynx and trachea, discussed later in the chapter, include Mammomonogamus laryngeus in the larynx of cattle, and Eucoleus aerophilus, Oslerus osleri, and Spirocerca lupi in the trachea of dogs.

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Lungs

2007

Jubb, Kennedy &Amp; Palmer's Pathology of Domestic Animals

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Anthracosis in the lungs and associated lymph nodes in sheep and its potential role in the occurrence of pneumonia

Beytut

2002

Small Ruminant Research

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Concurrent Occurrence of Lower Respiratory Aspergillosis and Pneumoconiosis in a Turkey Flock

et al. 2017

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This study describes a concurrent occurrence of lower respiratory aspergillosis and pneumoconiosis in a turkey fl ock. From one fl ock of 1000 turkeys, 4 clinically affected turkeys were examined pathologically and microbiologically. Clinically affected turkeys showed anorexia, lethargy, drooping of the wing, vomiting, dyspnea and open-beak breathing, or sudden dead. Gross lesions were observed in the air sacs and lungs which presented white to yellowish granulomas of varying size. Microscopic there was multifocal granulomatous airsacculitis and pneumonia. At the center of the granulomas, fungal hyphae were clearly highlighted in the lungs and air sacs by Gomori methenamie silver (GMS) staining. In the microbiological cultivation of the affected lungs and air sacs, Aspergillus fumigatus was isolated on Sabouraud dextrose agar. Furthermore, dark black dust accumulations were present in the cytoplasm of macrophages or interstitial tissue in the lungs and air sacs. There were also fi brosis and lymphohistiocytic cell infi ltrations around the particles. Overall, this study could implicated that pneumoconiosis might be a predisposing factor in the development of respiratory aspergillosis in turkeys.

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Pathological investigations on anthracosis in cattle

Abstract: Diagnostic investigation of chronic porcine reproductive and respiratory syndrome virus in a breeding herd ofpigs by M. D. Bierk, S. A. Dee, K. D. Rossow, J. E. Collins, M. I. Guedes, C. Pijoan, T. W. Molitor (VR, 148, June 2, 2001, pp 687-690).

Cited by 3 publications

References 12 publications

Lungs

Lungs

Anthracosis in the lungs and associated lymph nodes in sheep and its potential role in the occurrence of pneumonia

Concurrent Occurrence of Lower Respiratory Aspergillosis and Pneumoconiosis in a Turkey Flock

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