1 病例 患者,男,22岁,主以左踝肿痛4年,加重2年入院。4年前,病人诉左踝疼痛,拍X光片未见异常,在当地按“滑膜炎”给以消炎痛等药物治疗,效果不佳,近2年来踝关节症状加重,特别是在负重及活动后。检查见左踝前方有一突起,约3.0cm×3.5cm,表面可见静脉怒张,皮肤不红,触压疼痛,踝关节背伸功能消失,跖屈约3°,拍X光片见距骨头、颈部骨质呈溶骨性破坏,骨皮质膨胀变薄,肥皂泡样突起;CT扫 1 case of patients, male, 22 years old, the main left and right swollen pain for 4 years, increased hospital admission for 2 years. Four years ago, the patient complained of pain in his left cheek and no abnormalities occurred in the X-ray film. He was treated with drugs such as indomethacin by synovitis in the local area. The results were poor. In the past 2 years, the ankle joints have been aggravated, especially in weight-bearing. After the event. Examination showed a protrusion in front of the left iliac, about 3.0cm × 3.5cm, the surface can be seen venous engorgement, the skin is not red, touch pressure pain, ankle dorsal extension function disappeared, axillary flexion of about 3 °, shoot X-ray film to see the bone, The bone of the neck is osteolytic, the cortical bone expands and thins, and the soap bubbles protrude; CT scan