Fig. 3

Forty-nine-year-old diabetic male patient, with past history of left 2nd and 3rd toe amputation due to previous DFO, presented with chronic left heel ulcer and suspected diabetic foot osteomyelitis. A Sagittal T1WI shows deeply seated ulcer of the heel (arrow). B Sagittal T2 SPAIR shows diffuse bone marrow edema-like changes involving the calcaneus (circle). C and D Long axis IP and OP images show visual and quantitative signal nulling of the affected area on OP image (D) compared with IP image (C) (signal intensity ratio = 0.29). E and F Long axis IP and OP images at different level show visual and quantitative signal nulling of the 1st proximal phalanx and the 2nd metatarsal shaft on OP image (F) compared with IP image (E) (signal intensity ratio = 0.13 and 0.1, respectively). Features are consistent with multi-focal bland edema signals without osteomyelitis