PMC4899941_01
27-year-old man with osteofibrous dysplasia. Lateral (A) and anteroposterior (B) radiographs of the right proximal tibia.
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Radiographs of his right knee and leg showed a large focal area of cortical thickening measuring 5.5 x 1.5 cm along the anterior proximal aspect of the tibial shaft (Fig. 1).
27-year-old man with osteofibrous dysplasia. Axial (A) and sagittal (B) CT scan. The radiolucent lacunae have a "soap bubble" appearance (white arrows). The cortical is thickened without any periosteal reaction.
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Computed tomography (CT) confirmed the absence of a transitional zone and periosteal reaction (Fig. 2).
27-year-old man with osteofibrous dysplasia. Axial (A, B) and sagittal (C, D) T1- and T2-weighted MR images. The cortical lesion is of low intensity in both sequences (white arrows). The lacunae within the lesion are of intermediate signal on T1- and T2-weighted images.
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The medullary bone marrow surrounding the lesion was normal (Fig. 3).