an approach to imaging-based diagnosis. Axial CT with bone window (a) shows severe alteration of bone structure of the foot, multiple erosions and irregular periosteal reaction. Sagittal CT with soft tissue window (b) demonstrate diffuse inflammatory changes in subcutaneous tissues.
an approach to imaging-based diagnosis. Sagittal (a) and axial (b) T1WI fat-saturated+C images reveal diffuse marrow oedema involving bones of foot and multiple spherical hyperintense lesions surrounded by low-signal-intensity rims, creating the “dot-in-circle” sign (arrows).