Benign Bone Tumors
A 16-year-old boy presents with a 6-month history of dull aching pain in his left proximal thigh. The pain is worst at night and wakes him from sleep. He has discovered that taking ibuprofen provides complete relief within 30 minutes. X-ray shows focal cortical thickening with a central lucency in the proximal femur diaphysis. CT confirms a 10mm nidus within reactive sclerosis. Regarding osteoid osteoma:
Mark each as TRUE or FALSE
Osteoid osteoma is a benign bone-forming tumor characterized by a nidus less than 2 cm; it presents ...
The nidus size distinguishes osteoid osteoma (less than 2 cm) from osteoblastoma (greater than 2 cm)...
MRI is the gold standard imaging modality for osteoid osteoma; CT is unreliable for locating the nid...
CT-guided radiofrequency ablation (RFA) is first-line treatment with greater than 90% success rate; ...
Spinal osteoid osteoma characteristically presents with painful scoliosis (concave toward the lesion...
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Click T (True) or F (False) for each option