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. 2013 Nov 20;4:10.3402/dfa.v4i0.21884. doi: 10.3402/dfa.v4i0.21884

Fig. 9.

Fig. 9

A 57- year-old diabetic patient with longstanding neuropathic arthropathy. Plain radiograph shows hindfoot deformity and calcaneal fragmentation due to Charcot disease (a). T1-weighted sagittal pre (b) and post-contrast (c) and T2-weighted fat-suppressed (d) images reveal skin ulcer and associated a wide sinus tract formation (arrow) containing free air (asteriks), extending to bony cortex. Note the replacement of soft tissue fat (solid white arrow); subcutaneous and periarticular enhancement and osseous contrast enhancement that is consistent with infected neuroarthropathy.