The value analysis for imaging diagnosis and differential diagnosis of upper femur aneurysmal bone cyst / 中国医学装备

ABSTRACT

Objective:To analyze imaging diagnosis and differential diagnosis of upper femur aneurysmal bone cyst.Methods: The pre-operation imaging appearances about digital radiography(DR), computerized tomography (CT) and magnetic resonance imaging (MRI) of 46 aneurysmal bone cyst cases confirmed by operation and pathology were retrospectively analyzed, and then these special imaging appearances were gained and analyzed.Results:①CT plain scans showed the irregular expansile lucency shadow in the upper femur with the uneven bone septum image; the complete or incomplete osteosclerosis edge can be found in some parts of lesions; some lesions extend to adjacent soft tissue, and the liquid-liquid level can be found in lesion of 8 cases, and their edge and separated intensity strengthening were visible after signals were enhanced.②MRI plain scans revealed that most lesions showed long T1, T2 signals, the periphery of lesions showed long T1, short T2 signal shadows, and septum image was visible within lesions, and the liquid-liquid level can be found in lesion of 8 cases; some lesions extend to adjacent soft tissue, and their edge and separated intensity strengthening were visible after signals were enhanced.Conclusion: Through combined examination of DR, CT and MRI, the specialty and diagnostic accuracy of aneurysmal bone cyst could be improved, and it was helpful in the differential diagnosis of other upper femur bone tumors.