Fig. 2

MRI findings of the right lower extremity. A Sagittal view of the right lower extremity MRI scan showing abnormal signal shadows (blue arrow) in the cutaneous and subcutaneous areas. B Coronal view of the right lower extremity MRI scan showing tibia bone marrow edema (green arrow). C Sagittal view of the right lower extremity MRI scan showing that the infection of the soft tissue had progressed, involving the right gastrocnemius muscle with pus cavity formation (orange arrow). D Coronal view of the right lower extremity MRI scan showing that the tibia bone marrow edema had been resorbed (yellow arrow)