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Osteoid osteoma

Osteoid osteoma is a benign tumor of the bone tissue that is usually of small dimensions (< 2cm). It is characterized by a central vascularized nucleus called “nidus”, surrounded by reactive bone tissue. The nidus microscopically resembles an osteoblastoma. It usually appears as a very painful, single lesion, and, clinically, through continuous nightly pain. It responds to therapy with anti-inflammatory non-steroid drugs.

The main advantages of the Magnetic Resonance guided Focused Ultrasound Surgery (MRgFUS) for the treatment of osteid osteoma are:

  • it does not utilize ionizing radiations;
  • drastically reduced invasiveness (absence of incisions or punctures on the cutis: the cutis remains whole in the treatment);
  • immediate pain relief.

Treatmen with Focused Ultrasound at the Rizzoli Orthopaedic Institute.