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- W2366691215 abstract "Objective To analyze the imaging features of primary aneurysmal bone cyst (ABC) and evaluate the diagnostic value of different imaging modalities including plain radiography, computed tomography (CT) and magnetic resonance (MR) imaging. Methods Forty-one cases with pathology confirmed primary aneurysmal bone cysts were retrospectively reviewed for clinical characteristics and imaging signs on plain radiography (n=35), CT (n=23) and MRI (n=13). Results On plain radiographies, cortex expansion presented in 30 cases (86%), shell of cortex were contiguous in 17 (57%) of the 30 cases, but 5 of which were uncontiguous on CT images; mineralization within the lesions in 2 cases (6%); pathologic fracture in 7 cases (20%), 57% of which were spinal lesions. On CT images, 21 cases (91%) were composed of cysts with different number and size; local solid elements within the lesions were found in 4 cases (17%) and 1 case was entire solid; fluid-fluid levels were seen in 19 cases (90%); invasion of adjacent joints and bones was observed in 3 lesions. On MR images, fluid-fluid levels were seen in 12 cases (92%); the internal septations and walls of the cysts were inhomogeneously enhanced markedly, these septations and walls were not evident on T1WI, but with medium to high signal on T2WI. Conclusion ABC is often presented as eccentrically expanded and lytic lesions on plain radiology. The cysts, fluid-fluid levels, walls and septations that were enhanced significantly are the important basis for the diagnosis of ABC. CT and MR have advantages in visualizing these diagnostic signs of ABC." @default.
- W2366691215 created "2016-06-24" @default.
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- W2366691215 date "2007-01-01" @default.
- W2366691215 modified "2023-09-22" @default.
- W2366691215 title "Primary aneurysmal bone cyst: imaging features and diagnostic value of plain radiography, CT and MR" @default.
- W2366691215 hasPublicationYear "2007" @default.
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