This case-study describes plasmacytic lymphocytic synovitis associated with left cruciate cranial ligament rupture in a 2-year old female Pit Bull dog, with a history of bilateral hind limb lameness. The arthroscopy exam showed synovial membrane congestion and roughness, villi hyperplasia and hyperemia, as well as cartilage degeneration lesions. The hystopathological exam of the synovial membrane revealed lymphoplasmacytic nodules.
immune-mediated arthritis; cranial cruciate ligament; plasmacytic-lymphocytic synovitis; dog; knee
