Solitary bone lesion of LCH has a good prognosis.We present a case of a 12-year-old girl who suffered from progressive pain over the right proximal clavicle.

• 本病例是一位12岁小女孩觉得右边锁骨处疼痛情况与日俱增，后来病灶有肿胀和局部红热的情形，怀疑是骨髓炎。