Primary XXXX of bone: a case report.

@entity1 @entity39 @entity5 @entity4206 @entity4483 @entity3905 @entity465 @entity2277 @entity3 @entity158
BACKGROUND: An extremely rare primary @entity5 occurring in left proximal femurs of a 47-year old female is reported. CASE REPORT: She had left @entity158 for three months in April 2004. Radiological examinations revealed that a translucent expansive lesion in the left greater trochanter. She received the curettage of lesion and bone graft surgery. Curettage specimens were diagnosed as @entity3905 , considered to be metastatic. Five months late the lesion recurred. She underwent obturator neurotomy plus total hip replacement of left hip. A long-term of more than ten years follow-up showed there were no evidence of disease recurrence or @entity3 and no any signs of other @entity5 in her body. DISCUSSION: The @entity5 contained myoepithelial component with positive immunostain of @entity4483 protein, @entity4206 , CK-pan, and @entity2277 , epithelial component confirmed by CK-pan, CK-LMW and cartilage, which indicated the @entity5 was a @entity5 . @entity465 , relative high mitosis index, cartilage consistent with grade I chordrosarcoma, focal @entity39 , and infiltration between trabeculae found in the @entity5 indicated that the @entity5 had a low grade malignant nature. During long-time follow-up there were no signs of any @entity5 found in the @entity1 , which strongly suggested that the @entity5 be a primary one.
