Liver abscesses in dromedary camels: Pathological characteristics and aerobic bacterial aetiology

Aljameel, M. A.; Halima, M.O.; ElTigani-Asil, A.E.; Abdalla, Aseel; Abdellatif, Muaz Magzob

doi:10.5455/ovj.2014.v4.i2.p118

Cited by 7 publications

(1 citation statement)

References 5 publications

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“…(17.9%) and Streptococcus spp. (13.3%) were the most frequently identified bacteria involved in liver abscesses of the camels (Aljameel et al 2014).…”

Section: Liver Disordersmentioning

confidence: 96%

Fundamentals of Diagnostic Ultrasound in Dromedary Camel Medicine

2023

Int J Vet Sci

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This review focuses on the principles of diagnostic ultrasound in dromedary camel medicine. The first section of the review concentrates on scanning of the abdominal cavity of both sick and sound ones including sonography of the gastrointestinal tract and physical feedbacks followed by the implementation in different belly diseases. The second part of the review will focus on hepatic scanning of both sound and unhealthy camels including hepatic sonography in camels and natural results, evaluation of the liver echotexture, size and positioning and evaluation of the hepatic veins. It will be also followed by the application of ultrasound in some hepatic disorders in camels. The third section of this review will discuss renal imaging in sound and unhealthy camels including renal sonography and detected results. Parallel, it will be followed by application in different renal disorders. The last section of this article will emphasize thoracic imaging of both sound and unhealthy ones including procedures of pulmonary ultrasonography and findings in healthy camels and echocardiographic protocol and findings. Using sonography in detecting thoracic disorders such as myocardial degeneration, pneumonia, pulmonary abscessation, pulmonary emphysema, pleural effusion, pleurisy and pleuropneumonia will be followed.

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“…(17.9%) and Streptococcus spp. (13.3%) were the most frequently identified bacteria involved in liver abscesses of the camels (Aljameel et al 2014).…”

Section: Liver Disordersmentioning

confidence: 96%

Fundamentals of Diagnostic Ultrasound in Dromedary Camel Medicine

2023

Int J Vet Sci

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Ultrasonography of the liver in healthy and diseased camels (<i>Camelus dromedaries</i>)

Tadjine

2020

The Journal of Veterinary Medical Science

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In camels, hepatic diseases are relatively common and most of them are misdiagnosed as a cause of illness because signs may be subtle. In addition, diagnostic laboratory methods are insufficient as hepatic enzymes can also be elevated in camels with cardiac or skeletal muscle damage. Examples of liver diseases in camels are hepatic lipidosis, hepatitis, cirrhosis, hepatic necrosis, choleostasis, hyperplasia of biliary epithelium, hydatid cysts, glycogen deposition, cholangitis, cholangiohepatitis, calcified hydatid cyst and hepatic abscesses. When the liver is examined by ultrasonography, the clinician gets sufficient information about the size, position, echopatterns of the hepatic parenchyma, bile ducts and outlines of the hepatic blood vessels. Ultrasonography has been used previously in camels only for reproductive purposes. However, during the past decade, it has been used for scanning of the healthy organs as well as evaluation and determining the diagnosis and prognosis of non-reproductive disorders. Examples of diseases evaluated by ultrasonography in camels are paratuberculosis, trypanosomiasis, abdominal and urinary disorders, thoracic diseases, renal tumors, pyelonephritis, renal abscessation, gastrointestinal tumors, chronic peritonitis and splenic abscessation. Ultrasound-guidance in biopsy of hepatic lesions and in portocentesis has also been reported in camels. This mini review article is written to shed light on ultrasonography of the liver and its blood vessels in healthy camels as well as finding in camels with hepatic disorders such as fatty infiltration of the liver, hepatic abscesses and calcification of the bile ducts.

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Pathology, bacteriology and molecular studies on caseous lymphadenitis in Camelus dromedarius in the Emirate of Abu Dhabi, UAE, 2015-2020

Terab¹,

Wahab²,

Ishag³

et al. 2021

PLoS ONE

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Caseous lymphadenitis (CLA) or pseudotuberculosis is a chronic zoonotic bacterial disease caused by Corynebacterium pseudotuberculosis, which affects livestock and humans. This study aimed to describe the pathology, bacteriology and confirm the identity of the pathogen by 16S rRNA gene sequencing in Camelus dromedarius. A total of 12 camels with suspected CLA in three regions of Abu Dhabi Emirate (Abu Dhabi, Al Ain and Al Dhafra), United Arab Emirate (UAE) were subjected to clinical and postmortem examinations from January 2015 to December 2020. Clinically, camels were emaciated and showed the presence of external caseous abscesses suggestive of CLA. Postmortem examination showed multiple abscesses of variable sizes with caseous material encapsulated by fibrous tissue in the liver, lungs, muscle, and lymph nodes. Following clinical and postmortem examination, blood, pus and different tissue samples were collected for subsequent analysis. Histopathological examination of all organs stained with Hematoxylin and Eosin (H&E) indicated a central caseo-necrotic core that was admixed with bacterial colonies and infiltration of chronic inflammatory cells, surrounded by a pyogenic membrane, and an outer fibrous connective tissue capsule. Bacterial culture identified the isolates of Corynebacterium pseudotuberculosis biotype ovis strain, and these isolates were shown to be sensitive to all antibiotics tested (penicillin, ampicillin, Co-trimoxazole, enrofloxacin and tetracycline). Moreover, the identity of the isolates was confirmed by partial sequencing of the 16S rRNA gene which showed a 100% identity to Corynebacterium pseudotuberculosis. Phylogenetic analysis based on 16S rRNA gene sequence clearly differentiates Corynebacterium pseudotuberculosis from other species of Corynebacterium. Briefly, this study provided the basic information for infection of Corynebacterium pseudotuberculosis in Camels and will help in controlling of this pathogen in the region.

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Liver abscesses in dromedary camels: Pathological characteristics and aerobic bacterial aetiology

Cited by 7 publications

References 5 publications

Fundamentals of Diagnostic Ultrasound in Dromedary Camel Medicine

Fundamentals of Diagnostic Ultrasound in Dromedary Camel Medicine

Ultrasonography of the liver in healthy and diseased camels (<i>Camelus dromedaries</i>)

Pathology, bacteriology and molecular studies on caseous lymphadenitis in Camelus dromedarius in the Emirate of Abu Dhabi, UAE, 2015-2020

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