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Table 2 Comparison of the pathological findings after open surgery between the PET/CT and CT groups

From: PET/CT-guided versus CT-guided percutaneous core biopsies in the diagnosis of bone tumors and tumor-like lesions: which is the better choice?

Postsurgical histopathology diagnosis PET/CT group (n = 42) CT group (n = 55) χ2 value P value
Primary benign bone tumors
 Giant-cell tumor 2 3 1.311 0.252
 Osteoblastoma 1 2 0.231 0.631
 Osteoid osteoma 0 2 0.709 0.4
 Fibrous histiocytoma 0 3 1.17 0.279
Primary bone malignancies
 Osteosarcoma 4 3 0.116 0.734
 Chondrosarcoma 2 5 1.793 0.181
 Chordoma 5 2 1.393 0.238
 Ewing’s sarcoma 1 1 0.002 0.969
 Malignant fibrous histiocytoma 0 2 2.232 0.135
 Lymphoma 4 3 0.116 0.734
 Myeloma 3 2 0.173 0.677
Bone metastases
 Lung tumor 7 9 0.055 0.815
 Breast tumor 2 1 0.564 0.452
 Kidney tumor 2 3 0.082 0.774
 Prostate tumor 1 2 0.209 0.647
 Colorectal tumor 3 3 0.047 0.828
 Stomach tumor 2 2 0.03 0.863
Tumor-like lesions
 Simple cyst 0 2 1.559 0.212
 Aneurysmal bone cyst 1 3 0.569 0.451
 Langerhans cell histiocytosis 2 2 0.076 0.782