Atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd

TY - JOUR

T1 - Atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd

AU - Relun, Anne

AU - Cesbron, Nora

AU - Bourdeau, Patrick

AU - Dorso, Laëtitia

AU - Brement, Thomas

AU - Assié, Sébastien

AU - Christensen, Henrik

AU - Guatteo, Raphaël

PY - 2019

Y1 - 2019

N2 - Actinobacillosis usually is a sporadic infection that affects the tongue in cattle (“wooden tongue”) with possible spread to the digestive tract. Two 4-year-old Rouge-des-Prés cows from a single French beef herd were referred for chronic (2-6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore-Hoeppli phenomenon and intralesional Gram-negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.

AB - Actinobacillosis usually is a sporadic infection that affects the tongue in cattle (“wooden tongue”) with possible spread to the digestive tract. Two 4-year-old Rouge-des-Prés cows from a single French beef herd were referred for chronic (2-6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore-Hoeppli phenomenon and intralesional Gram-negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.

KW - Actinobacillus lignieresii

KW - cattle

KW - dermatitis

KW - pneumonia

U2 - 10.1111/jvim.15387

DO - 10.1111/jvim.15387

M3 - Journal article

C2 - 30548325

AN - SCOPUS:85058220243

SN - 0891-6640

VL - 33

SP - 297

EP - 301

JO - Journal of Veterinary Internal Medicine

JF - Journal of Veterinary Internal Medicine

IS - 1

ER -