MRI Evaluation of Resection Margins in Bone Tumour Surgery

Figure 3

43-year-old patient with undifferentiated osteosarcoma of the sacroiliac joint. Resection was performed with resection of iliac wing and sacral ala. Top-left: preoperative T2-weighted MRI of the tumor. Top-middle: postoperative T2-weighted MRI of the resected specimen. Top-right: segmentation of the tumour has been made on MRI in red color and of the whole specimen in green color for soft tissues and in grey color for bone tissue. Bottom-left: pathological picture of the margin in the encircled area. Tumoral cells are present at the margin, what was already visible on MRI. Bottom-right: a good margin is present at that location.