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《Journal of Clinical Radiology》 2008-08
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Imaging Feature of Primary Malignant Lymphoma in Long bone

ZHANG Zekun,LI Yuqing,DING Jianping,et al.Department of Radiology,3rd Affiliated Hospital,Medical University of Hebei,Shijiazhuang,Hebei Province 050051,P.R.China  
Objective To discuss the imaging features of primary malignant lymphoma in long bone.Materials and Methods 17 cases with primary malignant lymphoma confirmed by pathology were included in the study.The plain film radiographs,CT and MR images of the patients were reviewed.Results There were 11 male and 6 female patients,age from 5 to 69 years with average of 36.6 years.The lesions involved single bone in 14 cases and multiple bones in 3 case.The lesions involved metaphysis in 13 cases and diaphysis in 8 cases.X ray films and CT findings:lesions were infiltrative in 8 cases,osteolytic in 4 cases,sclerotic in 1 case,mixed in 4 case and cystic-expansive in 1case.8 cases had periosteal reaction,7 case had pathologic fractures and 11 case had soft tissue masses.MRI finding(2 cases):the lesions were low signal on T1WI and high signal on T2WI with a small quantity of mixed signal.Conclusion Primary malignant lymphoma in long bone usually involves single bone on metaphysis or diaphysis.Mouse bite invasion,osteolytic destruction with soft tissue and periosteal reaction are the most common findings.Osteosclerosis may be found in some cases around the pathological changes.
【CateGory Index】: R738.1
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