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Cochin Hospital · AP-HP · Université Paris Cité
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Cochin AP-HP

Osteoid Osteoma Centre — CT-guided Radiofrequency

Interventional Radiology · Cochin Hospital AP-HP · Paris

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🏥 Reference Centre · Bone

Osteoid Osteoma Centre, Paris: French Reference Centre

CT-guided radiofrequency · No surgery · Day case · General anaesthesia · Paris Cochin AP-HP

French reference centre

Cochin is a French reference centre for osteoid osteoma. Physicians: refer a patient. Patients: request a medical opinion. Published data: osteoid osteoma page.

Our Osteoid Osteoma Centre

Cochin AP-HP is a national reference centre for the treatment of osteoid osteoma by CT-guided percutaneous radiofrequency ablation. This benign bone tumour — characterised by severe nocturnal pain relieved by aspirin — affects adolescents and young adults, most commonly in the femur or tibia.

CT-guided RFA is the gold standard treatment, with lasting pain relief in the large majority of cases and about 4% recurrence in meta-analyses, without surgery, without bone resection, and without significant scarring. Under short general anaesthesia, an RFA electrode is inserted to the nidus and heated to 90°C for 4–6 minutes — permanently destroying the lesion. Same-day discharge in most cases. Fully reimbursed. No patient fees.

≈4%
Recurrence (meta-analysis)
2nd session
Possible if recurrence
Day case
General anaesthesia

FAQs

Classic presentation: severe pain at night, worse in the first hours of sleep, dramatically relieved by aspirin or NSAIDs. CT scan (thin slices, <1 mm) shows a small lucent nidus (<1.5 cm) with surrounding sclerosis. Bone scintigraphy shows intense focal uptake.
Pain typically resolves within days after the procedure. Most patients can stop aspirin/NSAIDs within 1–2 weeks. Full sporting activity resumes after 4–6 weeks.

Related pages

🇫🇷 French version: centre-osteome-osteoide.html

Why this page is trustworthy

Written by the Interventional Radiology team at Cochin Hospital AP-HP, Université Paris Cité. Medically reviewed by an interventional radiologist of the department. Last updated: August 2026.

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