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Sonographic findings in an alpaca with Mycobacterium kansasii infection


Braun, Ueli; Previtali, M; Gautschi, A; Forster, E; Steininger, K; Irmer, M; Reichle, S; Sydler, Titus; Wiederkehr, D; Rütten, Maja; Hoelzle, L (2009). Sonographic findings in an alpaca with Mycobacterium kansasii infection. Schweizer Archiv für Tierheilkunde, 151(6):287-290.

Abstract

This case report describes the clinical, ultrasonographic and postmortem findings in an alpaca with Mycobacterium kansasii infection. The alpaca was referred because of chronic weight loss and weakness. The results of clinical examination, haematology and serum biochemistry were not diagnostic. Ultrasonography of the liver revealed multiple, hyperechogenic lesions with a diameter of 1 to 3 cm. Histological evaluation of a liver biopsy sample showed acute, multifocal, suppurative, necrotising hepatitis. Despite treatment with antibiotics, the alpaca died. Postmortem examination revealed nodular to coalescing lesions in the liver, lungs, mediastinum, pleura and greater omentum, which could not be differentiated macroscopically or histologically from lesions caused by tuberculosis. Ziehl-Neelsen staining showed massive numbers of rods within epithelioid macrophages, which were identified as Mycobacterium kansasii by polymerase chain reaction analysis.

Abstract

This case report describes the clinical, ultrasonographic and postmortem findings in an alpaca with Mycobacterium kansasii infection. The alpaca was referred because of chronic weight loss and weakness. The results of clinical examination, haematology and serum biochemistry were not diagnostic. Ultrasonography of the liver revealed multiple, hyperechogenic lesions with a diameter of 1 to 3 cm. Histological evaluation of a liver biopsy sample showed acute, multifocal, suppurative, necrotising hepatitis. Despite treatment with antibiotics, the alpaca died. Postmortem examination revealed nodular to coalescing lesions in the liver, lungs, mediastinum, pleura and greater omentum, which could not be differentiated macroscopically or histologically from lesions caused by tuberculosis. Ziehl-Neelsen staining showed massive numbers of rods within epithelioid macrophages, which were identified as Mycobacterium kansasii by polymerase chain reaction analysis.

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Additional indexing

Other titles:Sonographische Befunde in der Leber bei einem Alpaka mit Mycobacterium kansasii-Infektion
Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Institute of Veterinary Bacteriology
05 Vetsuisse Faculty > Institute of Veterinary Pathology
05 Vetsuisse Faculty > Veterinary Clinic > Department of Farm Animals
Dewey Decimal Classification:570 Life sciences; biology
Language:English
Date:June 2009
Deposited On:13 Jul 2009 06:03
Last Modified:24 Sep 2019 16:10
Publisher:Hans Huber
ISSN:0036-7281
OA Status:Closed
Publisher DOI:https://doi.org/10.1024/0036-7281.151.6.287

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