Charles Louis Davis and Samuel Wesley Thompson DVM Foundation

For the Advancement of Veterinary and Comparative Pathology

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Pathology Image
  • SPECIES:
    • BOVINE
  • SYSTEM:
    • RESPIRATORY
  • ORGAN:
    • LUNG
  • DIAGNOSIS:
    • MULTIFOCAL TO COALESCING NECROSUPPURATIVE BRONCHOINTERSTITIAL PNEUMONA
  • CAUSE:
    • MYCOPLASMA BOVIS
  • CONTRIBUTOR:
    • O'TOOLE
  • INSTITUTION:
    • WYOMING STATE VETERINARY LABORATORY
  • GENPATH:
    • VIRAL
  • COMMENTS:
    • We generally see these distinctive 1 2 mm caseonecrotic lesions in longer-standing polymicrobial pneumonias, often non-responsive to several rounds of antibiotic treatment. These are positive for M. bovis by PCR. Margins of necrotic lesions stain strongly for the agent on immunohistochemistry. Caswell JL, Archambault M: 2007, Mycoplasma bovis pneumonia in cattle. Anim Health Res Rev. 8(2):161 - 186.