Eva Eva Eva Eva Marcel Suchowski Marcel Suchowski Katja Voigt Katja Voigt Joachim Spergser Joachim Spergser Julia M. Riehm Julia M. Riehm Wiley 2025 A breeding ram was submitted to a veterinary hospital due to persistent pneumonia, emaciation and high fever. Upon submission, it also showed severe weight-bearing lameness on all four legs with highly fluid-filled digital flexor tendon sheaths. Additionally, a mild brisket sore was diagnosed. The postmortem examination revealed a chronically active fibrinosuppurative inflammation of the digital flexor tendon sheaths on all four legs. Additionally, a distinctive chronically active necrotising, suppurative and abscess-forming soft tissue inflammation was identified in the sternal area. Microbiological examination of tissue samples from different locations revealed a mixed bacterial colonisation including Escherichia coli, Klebsiella oxytoca and Trueperella pyogenes. Additionally, Mycoplasma arginini was detected in samples of the lung and tendon sheaths. Genome sequencing and characterisation of M. arginini revealed the presence of a prophage associated with arthritogenesis in related Mycoplasma species. However, the contribution of M. arginini to the diagnosed tendosynovitis cannot be conclusively clarified. PDFDocument eng 2025-04-09T07:57:35.610307Z 2025 Mortality Sheep 8591468 b application/pdf http://creativecommons.org/licenses/by-nc-nd/4.0/