Multicentric Osteoid Osteoma Presenting a Diagnostic Dilemma

Developmental Biology

Lisabeth A. Bush¹  Bryan D. Berkey¹  Robert B. Gayle¹ 

关键词: CT;    ESR;    MRI;    WBC;   

DOI  :  10.2484/rcr.v3i3.217

学科分类：医学（综合）

来源: University of Washington * Department of Radiology

【 摘 要 】

We present a case of a relatively common benign tumor that was a diagnostic dilemma because of its atypical appearance in multiple imaging modalities. Our patient was a 22-year-old man who presented with complaint of three months of shin pain with running. The radiographically demonstrated sclerotic lesion in his right tibia initially was thought most likely to be a stress fracture, but on further evaluation, it had features that suggested a subacute osteomyelitis or Brodie’s abscess with focal sequestra. It was in fact, biopsy proven to be an osteoid osteoma with multiple, closely adjacent nidi. Its elongate, multicentric, “string of beads�? arrangement as well as its intramedullary location is uncommon and it was larger than normally expected. Because of the unusual presentation and appearance of this lesion it caused a diagnostic dilemma. This lesion was evaluated with a full spectrum of modalities including radiographs, CT, MRI, Technetium 99m-MDP bone scan and Indium-111 white blood cell scan. After biopsy achieved a definite diagnosis, this tumor was successfully treated with radiofrequency ablation of all nidi in one session.

【 授权许可】

Unknown