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خرید پکیج
تعداد آیتم قابل مشاهده باقیمانده : 3 مورد
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Guidelines for imaging for Ewing sarcoma family of tumors from the Children's Oncology Group

Guidelines for imaging for Ewing sarcoma family of tumors from the Children's Oncology Group
At presentation and prior to local control
Site Testing
Primary and bone metastases AP and lateral radiographs
Primary tumor MRI with gadolinium (presurgery exam should be performed within four weeks of local control procedure)
Bone metastases MRI with gadolinium or CT scan with contrast (recommended for possible bone metastases if diagnosis uncertain)
Chest CT
AP and lateral radiographs (recommended at presentation only)
Whole body Technetium bone scintigraphy and/or FDG-PET (recommended at presentation, particularly if primary bone tumor negative on bone scintigraphy)
Baseline after local treatment
Site Testing and timing
Primary and bone metastases AP and lateral radiographs within two weeks of surgery
Primary tumor MRI with gadolinium or CT scan with IV contrast (in patients without significant metallic artifact at primary tumor site) three to four months after local control
Bone metastases MRI with gadolinium or CT scan with contrast (recommended for possible bone metastases if diagnosis uncertain)
Surveillance on chemotherapy
Site Testing and timing
Primary and bone metastases AP and lateral radiographs after 10 cycles (approximately halfway through postoperative chemotherapy)
MRI with gadolinium or CT scan with IV contrast recommended if symptoms or abnormal imaging (and surgical intervention or radiation therapy contemplated)
Chest CT after 10 cycles (approximately halfway through postoperative chemotherapy)
Whole body Technetium bone scintigraphy (if disease positive on prior bone scintigraphy) or FDG-PET (if disease positive on prior FDG-PET and bone scan-negative) recommended
  • At end of cytotoxic chemotherapy
  • Sooner if symptoms or abnormal imaging (and surgical or other intervention contemplated)
Surveillance postchemotherapy
Site Testing and timing
Primary and bone metastases AP and lateral radiographs every three months x 8, then every six months x 6, then every 12 months x 5
MRI with gadolinium or CT scan with IV contrast recommended if symptoms or abnormal imaging (and surgical or other intervention contemplated)
Chest AP and lateral radiographs every three months x 8, then every six months x 6, then every 12 months x 5
CT recommended if abnormal radiographs
Whole body Technetium bone scintigraphy (if positive on prior scans) or FDG-PET (if positive on prior scans and bone scan-negative) if symptoms or abnormal imaging AND surgical or other intervention contemplated
AP: anterior-posterior; MRI: magnetic resonance imaging; CT: computed tomography; FDG-PET: fluorodeoxyglucose positron emission tomography; IV: intravenous.
Data from: Meyer JS, Nadel HR, Marina N, et al. Imaging guidelines for children with Ewing sarcoma and osteosarcoma: a report from the Children's Oncology Group Bone Tumor Committee. Pediatr Blood Cancer 2008; 51:163.
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