NAVLE（北美执业兽医考题）Day 758

Q1:A 6-year old male neutered Weimaraner presents for left forelimb lameness. Radiographs are shown below and show a mixed productive and destructive lesion affecting the left distal radius with accompanying soft tissue swelling. The lesion does not cross the joint. What is the most common primary bone tumor in the dog?一只6岁的雄性已绝育魏玛犬由于左前肢跛行前来就诊。X光片如下图所示，左侧桡骨远端活动性以及破坏性病变，伴随周围的软组织肿胀。病变没有穿过关节。什么是犬最常见的原发性骨肿瘤？[图片]