, Volume 2, Issue 2, pp 176-180
Date: 15 Jul 2006

Use of Ultrasonographic Guidance for Needle Localization of Osteoid Osteoma of the Capitate

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Purpose

We describe a case of ultrasound-guided needle localization of an osteoid osteoma of the wrist.

Introduction

Osteoid osteomas are benign small (typically less than 1.5 cm) osteoid-forming tumors accounting for 10–12% of all primary bone tumors. The most common sites are in the appendicular skeleton, but osteoid osteomas can occur in any bone. Classically, these tumors appear as a small sclerotic lesion with a circular lucent defect, the nidus. The nidus represents “osteoid and interconnected bone superimposed on highly vascularized connective tissue” [1, 2].

Treatment most commonly consists of medical management with nonsteroidal anti-inflammatory drugs (NSAIDs), surgical excision, and/or radiofrequency ablation. Fast scanning now made possible with multidetector computed tomography (CT) has resulted in CT-guided drilling (curettage or burr) and CT-guided percutaneous resection. More recently, there has been increased use of radiofrequency ablation of osteoid osteoma utilizing perc