Fig. 6

A 51-year-old woman with bone metastasis from lung cancer. a-b Preoperative coronal (a) and axial (b) CT images demonstrate osteolytic destruction of the left acetabulum (yellow arrow). c The preoperative axial STIR sequence shows a heterogeneous high-intensity signal with a soft tissue mass (yellow arrow). d Preoperative ¹⁸F-FDG PET/CT imaging shows uptake in the bone lesion in the left acetabulum (yellow arrow). e A schematic diagram of the Mast-Quadrant minimally invasive system. f-g Intraoperative MWA through endoscopic channels (yellow arrow). h-i Intraoperative BC filling. j The histopathological biopsy results (hematoxylin and eosin, original magnification 40×) confirmed that the lesion was a bone metastasis from lung cancer