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Figure 9a. Bone infarction of the tibial diaphyses in a 5-year-old child. (a) Initial lateral radiograph shows periosteal new bone formation along the tibial diaphyses (arrows), particularly in the upper third of the right tibia, with normal bone texture. (b) Lateral radiograph obtained 6 weeks later shows distortion of the bone texture, with incorporation of the region of periosteal reaction into cortical bone and resultant cortical thickening in both tibiae, as well as linear serpiginous areas of sclerosis in the left tibial shaft. These are typical radiographic features of chronic infarction.
