XX男，41岁。右下肢疼痛2年，以髋关节疼痛尤著，近一月来加重而就诊。检查：右股骨稍较对侧增粗，但无红肿及窦道形成，轻压痛无发热。X线表现：右股骨上段大粗隆下有2．5×10cm范围不规则骨质破坏吸收区，呈多数大小不等的囊状或蜂窝状透明区，囊周边缘硬化清晰，未见死骨， XX male, 41 years old. Right lower extremity pain for 2 years, especially with hip pain, increased in recent January and treatment. Check: Right femur slightly thicker than the opposite side, but no swelling and sinus formation, mild tenderness without fever. X-ray findings: the upper right femur greater trochanter 2.5 × 10cm range of irregular bone destruction absorption zone, was the size of most of cystic or honeycomb transparent area, the peribulbar sclerosis clear, no sequestrum ,