Osteoid Osteoma with a Multicentric Nidus: Interstitial Laser Ablation under MRI Guidance

David Kaul,Oriane Bonhomme,Florian Streitparth,Phillip Schwabe,Bernhard Gebauer

doi:10.1155/2013/254825

David Kaul, Oriane Bonhomme + Show 3 more

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https://doi.org/10.1155/2013/254825

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Abstract

Osteoid osteoma (OO) is a common benign tumor of the bone and is typically treated by thermal ablation with computed tomography (CT) guidance. Only a few cases of multicentric OO have been described. We here report the case of an 11-year-old boy with multicentric OO of the right femur treated with laser ablation under open high-field MRI guidance. The steps of the interventional MRI procedure are described, discussing the benefits and disadvantages of MRI versus CT guidance especially with regard to younger patients.

Highlights

Osteoid osteoma (OO) is a benign neoplasm of the bone that makes up about 12% of all benign bone tumors [1]
We here report the case of an 11-yearold boy with multicentric OO of the right femur treated with laser ablation under open high-field magnetic resonance imaging (MRI) guidance
Since computed tomography (CT) guidance has the obvious disadvantage of radiation exposure, which is especially problematic in younger patients, and restricted imaging options, magnetic resonance imaging (MRI) guidance has recently been used for minimally invasive interventions

Summary

Introduction

Osteoid osteoma (OO) is a benign neoplasm of the bone that makes up about 12% of all benign bone tumors [1]. The tumor usually consists of a single nidus of highly vascularized osteoid tissue surrounded by sclerotic bone. An OO may present with more than one nidus; in this case, the tumor is referred to as multicentric. Only 24 cases of multicentric OO in a single bone have been described [2]. The main treatment options for OO include en bloc resection and curettage of the nidus. Other recently described treatment options include CT-guided thermal laser ablation [7]. Since CT guidance has the obvious disadvantage of radiation exposure, which is especially problematic in younger patients, and restricted imaging options, magnetic resonance imaging (MRI) guidance has recently been used for minimally invasive interventions. We here report a case of multicentric osteoid osteoma treated by laser ablation in an open MRI system

Case Report

Findings

Discussion