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Sonographic findings in an alpaca with Mycobacterium kansasii infection


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

Abstract

Summary
This case report describes the clinical, ultrasonographic
and postmortem fi ndings 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 identifi ed as Mycobacterium kansasii by
polymerase chain reaction analysis.
Keywords: alpaca, Mycobacterium kansasii, liver,
lungs, ultrasonography

Abstract

Summary
This case report describes the clinical, ultrasonographic
and postmortem fi ndings 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 identifi ed as Mycobacterium kansasii by
polymerase chain reaction analysis.
Keywords: alpaca, Mycobacterium kansasii, liver,
lungs, ultrasonography

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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:21 Nov 2017 14:14
Publisher:Hans Huber
ISSN:0036-7281
Publisher DOI:https://doi.org/10.1024/0036-7281.151.6.287

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