胸骨朗格汉斯细胞组织细胞增生症是一种低度恶性潜能的骨肿瘤,用细针穿刺的方法取材,通过组织细胞学和免疫组化结果分析,结合临床资料及影像学检查与其他肿瘤鉴别,做出准确的诊断。1材料与方法1.1临床病例患者男性,13岁。因上胸部疼痛1月余,发现肿块3天来我科行穿刺检查。查体发现上胸部皮肤隆起,皮肤无红肿,肿块质地较硬,表面 Sternum Langerhans cell histiocytosis is a low-potential malignant bone tumor, drawn by fine needle aspiration, histological and immunohistochemical analysis of the results, combined with clinical data and imaging studies with other tumors Identification, make accurate diagnosis. 1 Materials and Methods 1.1 Clinical cases Patients Male, 13 years old. More than 1 month due to pain in the upper chest, the tumor was found three days to check our line puncture. Physical examination found that the chest skin uplift, no swelling of the skin, the texture of the tumor is hard, the surface