Osteoid osteoma and osteoblastoma: MRI appearances and the significance of ring enhancement

Youssef, Boshra A.; Haddad, Maurice C.; Zahrani, Ahmed Al; Sharif, Hassan; Morgan, Judith; Al-Shahed, Mona; al-Sabty, A; Choudary, R.

doi:10.1007/bf00180597

Cited by 39 publications

(11 citation statements)

References 22 publications

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“…In fact, differential diagnosis of osteoid osteoma with similar bone lesions can be challenging, even for experienced radiologists [23,25,26], although the association of multiple imaging modalities seems to increase diagnostic confidence. In our series, a biopsy specimen was obtained in those patients with nidi larger than 1 cm and in re-treated patients.…”

Section: Resultsmentioning

confidence: 98%

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CT-guided radiofrequency ablation of osteoid osteoma: long-term results

et al. 2004

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The aim of the study was to assess the safety and efficacy of CT-guided percutaneous radiofrequency (RF) ablation of osteoid osteoma (OO). From 1997 to 2001, RF ablation was performed on 38 patients with OO, diagnosed clinically and by radiography, scintigraphy, contrast-enhanced MRI, and CT. Treatment was performed via percutaneous (n=29) or surgical (n=9) access, under CT guidance in all cases, with an 18-gauge straight electrode. Patients were discharged within 24 h and followed up clinically (at 1 week and every 6-12 months) and with MRI (at 6 months) and scintigraphy (after 1 year). The technical success rate was 100%. Complications occurred in two patients, consisting in local skin burns. The follow-up range was 12-66 months (mean +/- SD, 35.5+/-7.5 months). Prompt pain relief and return to normal activities were observed in 30 of 38 patients. Persistent pain occurred in eight patients; two patients refused further RF ablation and were treated surgically; RF ablation was repeated in six cases achieving successful results in five. One patient reported residual pain and is being evaluated for surgical excision. Primary and secondary clinical success rates were 78.9 (30/38 patients) and 97% (35/36 patients), respectively. CT-guided RF ablation of OO is safe and effective. Persistent lesions can be effectively re-treated. Several imaging modalities are needed for the diagnosis of OO and for the follow-up after treatment, particularly in patients with persistent symptoms.

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Section: Resultsmentioning

confidence: 98%

“…Dynamic contrast-enhanced MRI enables differentiation of the nidus (high and early contrast uptake) from the surrounding tissue [23], thus reducing the overestimation of le- Fig. 1a-d A 31-year-old man with femoral osteoid osteoma.…”

Section: Resultsmentioning

confidence: 98%

CT-guided radiofrequency ablation of osteoid osteoma: long-term results

et al. 2004

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“…Gadolinium administration has been suggested to improve conspicuity and detection of the nidus [4,22,29]. In addition, dynamic gadolinium-enhanced MRI has been shown to demonstrate OO with increased conspicuity compared with non-enhanced MRI [4].…”

Section: Discussionmentioning

confidence: 97%

Imaging features of spinal osteoid osteoma with emphasis on MRI findings

Harish

Saifuddin

2005

Eur Radiol

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A retrospective evaluation of the imaging of 13 patients with a diagnosis of osteoid osteoma (OO) of the spine was undertaken. Available imaging included radiographs (n=10), computed tomography (CT) (n=13), bone scintigraphy (n=5) and magnetic resonance imaging (MRI) (n=13). MRI features evaluated were pattern of neural arch and vertebral body oedema and the presence of an identifiable nidus. MRI features were correlated with other available imaging. There were seven males and six females with an age range of 8-59 years. On radiographs, scoliosis was present in ten and a sclerotic pedicle in nine patients. Focal increased uptake on bone scintigraphy consistent with OO was seen in all five patients where scintigraphy was available. On CT, a nidus was identified in all patients and reactive sclerosis was seen in 12. MRI demonstrated the nidus in eight patients and unilateral neural arch oedema with anterior extension to involve the ipsilateral posterolateral vertebral body in 11. When MRI is performed in the evaluation of back pain, the presence of unilateral neural arch oedema extending to involve the posterolateral vertebral body raises the possibility of spinal OO and should prompt CT to confirm the presence of a nidus.

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“…Therefore, we believe that calcaneal osteoid osteoma should be considered as a differential diagnosis in patients undergoing MRI 3 months after symptom presentation. Some authors have reported that CT visualizes nidus more accurately and effectively than MRI [18], [19], [20], [21]. Moreover, Khurana et al.…”

Section: Discussionmentioning

confidence: 99%

Intra-articular osteoid osteoma of the calcaneus: a case report and review

Hamada

Matsubara

Kimura

et al. 2016

Radiology Case Reports

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Osteoid osteoma of the calcaneus is rare and frequently misdiagnosed as arthritis because of similar symptoms. In addition, radiographic findings may be nonspecific, and magnetic resonance imaging (MRI) may show a bone marrow edema and changes in adjacent soft tissue. A 19-year-old man presented with a 6-month history of persistent pain and swelling in the left hind foot; diagnostic computed tomography and MRI analyses revealed lesions suggesting an intra-articular osteoid osteoma of the calcaneus. Initial MRI did not show specific findings. On operation, the tumor was removed by curettage; pathologic findings demonstrated woven bone trabeculae surrounded by connective tissue, confirming the diagnosis. To the best of our knowledge, MRI scans in all cases of calcaneal osteoid osteoma reported till 3 months after the injury exhibited a nidus. We believe that calcaneal osteoid osteoma should be considered as a differential diagnosis in patients undergoing MRI 3 months after symptom presentation; early computed tomography is critical in diagnosis.

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Osteoid osteoma and osteoblastoma: MRI appearances and the significance of ring enhancement

Cited by 39 publications

References 22 publications

CT-guided radiofrequency ablation of osteoid osteoma: long-term results

CT-guided radiofrequency ablation of osteoid osteoma: long-term results

Imaging features of spinal osteoid osteoma with emphasis on MRI findings

Intra-articular osteoid osteoma of the calcaneus: a case report and review

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