Bone marrow oedema and soft tissue oedema in tuberculous coxarthritis. Confirmed tuberculous coxarthritis of the right hip in a 15-year-old boy. Post-contrast T1W TSE FS shows severe coxarthritis (a) with osteomyelitis of the acetabulum and the femoral head and soft-tissue oedema in the right gluteus muscle. No pathological signal changes are seen in the left hip joint. Moderate distortion artefacts are noticeable on DWI with primary coronal acquisition (b), while signal changes corresponding to (a) remain clearly visible. ADC values of the inflammatory osseous and soft-tissue lesions measured on the ADC map (c) ranged between 1.60 and 1.71 × 10-3 mm2/s. Image fusion of colourised DWI b = 800 data acquired with standard transversal DWI was performed with coronal T2W TIRM (d) and transversal post-contrast T1W imaging (e).