Posterior paralysis in pigs due to Haemophilus pleuropneumoniae infection.

Kaige, Noboru; Sugiyama, Akira; Yamanaka, Shingo; Sasaki, Osamu; Sugiyama, Masahiro; Isoda, Masae

doi:10.1292/jvms1939.45.251

Cited by 3 publications

(4 citation statements)

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“…However, arthritis in the vertebral joints has been reported in pigs challenged with A. pleuropneumoniae. 7 Moreover, a mixed growth of bacteria including A. pleuropneumoniae has recently been associated with otitis media. 4 Thus, the cases of necrotizing osteomyelitis caused by A. pleuropneumoniae are unique.…”

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confidence: 99%

Actinobacillus pleuropneumoniae Osteomyelitis in Pigs Demonstrated by Fluorescent In Situ Hybridization

Jensen¹,

Boye²,

Hagedorn-Olsen³

et al. 1999

Vet Pathol

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Abstract. Necrotizing osteomyelitis and fibrinopurulent arthritis with isolation of Actinobacillus pleuropneumoniae serotype 2 is reported in two pigs from a herd with lameness and mild coughing problems among 8 to 12-week-old pigs. Application of fluorescent in situ hybridization targeting 16S ribosomal RNA of A. pleuropneumoniae in formalin-fixed tissue was performed to verify the association of A. pleuropneumoniae with the bone and joint lesions. By in situ hybridization A. pleuropneumoniae was demonstrated as multiple microcolonies or single cells dispersed in focal fibrinonecrotizing pleuropneumonia, in joints with arthritis, and in bone necroses including lysis of growth plate and suppurative inflammation in the adjacent trabecular metaphysis, thus demonstrating that well-known infections manifest new, unusual lesions.

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confidence: 99%

Actinobacillus pleuropneumoniae Osteomyelitis in Pigs Demonstrated by Fluorescent In Situ Hybridization

Jensen¹,

Boye²,

Hagedorn-Olsen³

et al. 1999

Vet Pathol

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“…Jensen et al [14] demonstrated A. pleuropneumoniae associated osteomyelitis in multiple joints via in-situ hybridization and concluded an infection following hematogenous spread. In both reports it has been reported that the animals itself [16] or the herd in which the pigs were held [14] revealed respiratory problems. Nevertheless, subclinical infections with A. pleuropneumoniae are a challenging problem in pig herds [17].…”

Section: Discussionmentioning

confidence: 99%

“…Diskospondylitis and osteomyelitis were considered the most likely differential diagnoses due to the young age and the presence of typical clinical signs [2,4,7,12,16]. Although diskospondylitis, vertebral osteomyelitis and associated vertebral fractures are mainly found in the lumbar or lumbosacral area in pigs, about 30% of reported vertebral abscesses are distributed within the cervical segments [1,2,5,7,8].…”

Section: Discussionmentioning

confidence: 99%

“…A. pleuropneumoniae is the cause of contagious pleuropneumonia in pigs [8,14]. Kaige et al [16] demonstrated pleural abscesses following A. pleuropneumoniae infection in two pigs leading to paralysis of the pelvic limbs. Jensen et al [14] demonstrated A. pleuropneumoniae associated osteomyelitis in multiple joints via in-situ hybridization and concluded an infection following hematogenous spread.…”

Section: Discussionmentioning

confidence: 99%

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Vertebral fracture due to Actinobacillus pleuropneumoniae osteomyelitis in a weaner

et al. 2020

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Background Osteomyelitis is relatively frequent in young pigs and a few bacterial species have been postulated to be potential causative agents. Although Actinobacillus (A.) pleuropneumoniae has been sporadically described to cause osteomyelitis, typically, actinobacillosis is characterized by respiratory symptoms. Nevertheless, subclinical infections are a challenging problem in pig herds. To the authors’ knowledge, this is the first case description that reports clinical, diagnostic imaging, pathological and histopathological findings of vertebral osteomyelitis in a pig and first describes A. pleuropneumoniae as the causative agent identified by advanced molecular methods. Case presentation An eight-week-old female weaner was presented with a non-ambulatory tetraparesis. The neurological signs were consistent with a lesion in the C6-T2 spinal cord segments. Imaging studies revealed a collapse of the seventh cervical vertebral body (C7) with a well demarcated extradural space-occupying mass ventrally within the vertebral canal severely compressing the spinal cord. Post-mortem examination identified an abscess and osteomyelitis of C7 and associated meningitis and neuritis with subsequent pathological fracture of C7 and compression of the spinal cord. In the microbiological analysis, A. pleuropneumoniae was identified using PCR and DNA sequence analysis. Conclusions A. pleuropneumoniae can be responsible for chronic vertebral abscess formation with subsequent pathological fracture and spinal cord compression in pigs.

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Multifocal Granulomatous Hepatitis Caused by Actinobacillus pleuropneumoniae Serotype 2 in Slaughter Pigs

Ohba¹,

Shibahara

Kobayashi

et al. 2008

Journal of Comparative Pathology

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Posterior paralysis in pigs due to Haemophilus pleuropneumoniae infection.

Cited by 3 publications

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Actinobacillus pleuropneumoniae Osteomyelitis in Pigs Demonstrated by Fluorescent In Situ Hybridization

Actinobacillus pleuropneumoniae Osteomyelitis in Pigs Demonstrated by Fluorescent In Situ Hybridization

Vertebral fracture due to Actinobacillus pleuropneumoniae osteomyelitis in a weaner

Multifocal Granulomatous Hepatitis Caused by Actinobacillus pleuropneumoniae Serotype 2 in Slaughter Pigs

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