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Fig. 3 | Cancer Imaging

Fig. 3

From: Use of percutaneous microwave ablation for the treatment of bone tumors: a retrospective study of clinical outcomes in 47 patients

Fig. 3

A 19-year-old girl with osteoid osteoma of the right femur. a-b Preoperative anteroposterior (a) and lateral (b) plain radiographs do not indicate significant neoplastic lesions. c-d Preoperative coronal (c) and axial (d) CT images demonstrate a nidus of the lesser femoral trochanter (yellow arrow) with adjacent cortical thickening. e-f Preoperative coronal (e) and axial (f) STIR sequence images show a hypointense central lesion; additionally, slight edema is present in the surrounding soft tissues. g The intraprocedural axial CT image shows that the MWA antenna was inserted into the bone lesion (yellow arrow) and that the tumor tissue was reached. h The histopathological biopsy results (hematoxylin and eosin, original magnification 100×) diagnosed the bone lesion as an osteoid osteoma. i-k At the 3-month follow-up visit, wound recovery (i) was satisfactory, the tumor was successfully removed after ablation, and no significant progression of the lesion was observed on the CT scan (j-k)

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