原发于骨髓而以组织细胞及嗜酸性白细胞为主要结构特征的嗜酸性肉芽肿,我科12年来遇到了例,报告如下。临床资料年龄:14—60岁,平均3004岁。性别:均为男性。发生部位:扁平骨3例(顶、骶、肋),管状骨4例(股、指)。病灶均为单发的孤立病灶。X线检查多呈边缘比较清楚的透亮区,发生于管状骨的病灶常伴有骨膜反应,而临床常误诊为骨肉瘤。其他除表现于局部疼痛、肿胀、血硷性磷酸酶13—15单位,血嗜酸性白细胞7—10％,血沉36— The eosinophilic granulomatous granuloma, which is mainly composed of histiocytes and eosinophils and originates in the bone marrow, was encountered in our department for 12 years. The report is as follows. Clinical data age: 14-60 years old, average 3004 years old. Gender: All males. Occurrence sites: 3 cases of flat bone (top, ankle, rib), and 4 cases of bone (stock, finger). The lesions are isolated solitary lesions. The X-ray examination is mostly in the translucent region where the edges are relatively clear. The lesion that occurs in the tubular bone is often accompanied by a periosteum reaction. Clinically, it is often misdiagnosed as osteosarcoma. In addition to other manifestations of local pain, swelling, bloody phosphatase 13-15 units, blood eosinophils 7-10%, ESR 36-