To cite: Kenzaka T. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2013010234 DESCRIPTION A 19-year-old man with no notable history had an acute episode of chest pain on the left side/back pain. Non-steroid anti-inflammatory drugs taken after consultation at another hospital were ineffective, and the pain persisted and intensified; therefore, he was referred to o...

Objective: To compare the clinical efficacy of CT-guided radiofrequency ablation and open surgery in the treatment of osteoid osteoma of the spine. Methods: From June 2012 to June 2016, 45 patients with osteoid osteoma of the spine were treated with CT-guided radiofrequency ablation in 23 cases (Group A) and open surgical resection in 22 cases (Group B). The out-of-bed activity time, visual ana...

The authors introduce a 42-year-old woman with a choroidal osteoma. After 10 years the patient presented a second choroidal osteoma in the same eye; this osteoma has been growing in the last years. New tests that were unavailable during the first diagnosis were performed such as Fundus Autofluorescence or Enhanced Depth Imaging-Optical Coherence Tomography (EDI-OCT). These tests show characteri...

Osteoid osteoma is a rare bone tumor initially described by Jaffe in 1935. It is characterized as a bone-producing tumor that is most frequently observed in the lower extremities of children or young adults (11-22 years). Osteoid osteoma is differentiated from osteoblastoma according to size. Osteoid osteoma is smaller than 1.5 centimeters in diameter. In approximately 10% to 25% of the cases, ...

BACKGROUND Conventional open excision, or en bloc excision, was the standard treatment for osteoid osteoma until the development of percutaneous treatment for this tumor in the early 1990s. Most percutaneous treatments were performed under the guidance of computed tomography (CT), which could clearly demonstrate the exact location of the tumor and minimize bone destruction or resection. In orde...

OBJECTIVE The aim of this study is to evaluate the efficiency of gamma probe guided osteoid osteoma surgery and the applicability of quantitative analyses obtained from preoperative bone scan images. MATERIAL AND METHODS This study involved 12 osteoid osteoma patients who were treated with gamma probe guided surgery after preoperative bone scan. The calculated contrast ratios between nidus an...

A 19-year-old male college basketball player experienced onset of pain after playing 4 games in 2 days. Clinical examination revealed mild swelling over the mid-left tibia. There were no signs of infection. We obtained radiographs (Fig. 1). The radiological differential diagnosis at this stage included focal cortical abscess related to infection, stress fracture and osteoid osteoma. Computed to...