Osteoid osteoma of the acetabulum successfully treated with computed tomography-guided resection and ablation using a standard electrosurgical generator: a case report

Background Osteoid osteomaaccounts for approximately 10% of all benign bone tumors. The most common sites of osteoid osteomaare the subcortical shaft and metaphyses of long bones, but any other skeletal bone site can be involved. The acetabulumis a rare site according to past reports. This site presents challenges to optimal management because it is anatomically difficult to approach, and because its rarity leads to limited experience with therapeutic procedures. Here, we report for the first time a rare case of osteoid osteomain the acetabulumthat was successfully treated via resection of the nidus and ablation using a standard electrosurgical generator under computed tomographic guidance.