case_images: PMC3608179_01
case_images: Radiograph of the patient's left knee in anteroposterior (a) and lateral (b) view.
case_images: CRIM.MEDICINE2013-746472.001.jpg
case_images: PMC3608179_01_CRIM.MEDICINE2013-746472.001.jpg
case_images: fig1
case_images: A previous plain radiograph of the patient's knee in two projections was considered to be negative (Figure 1).
case_images: Three-phase scintigraphy showing a picking up area on the superior part of the patella.
case_images: CRIM.MEDICINE2013-746472.002.jpg
case_images: PMC3608179_01_CRIM.MEDICINE2013-746472.002.jpg
case_images: fig2
case_images: A three-phase scintigraphy was taken and it revealed a picking up area on the superior part of the left patella (Figure 2).
case_images: (a) Axial, (b) sagittal, and (c) coronal CT scans show a round, well-marginated sclerotic lesion of about 8 mm with a hypodense rim and a centrally calcified nidus.
case_images: CRIM.MEDICINE2013-746472.003.jpg
case_images: PMC3608179_01_CRIM.MEDICINE2013-746472.003.jpg
case_images: fig3
case_images: This image was consistent with an osteoid osteoma (Figure 3).
case_images: Postoperative CT scans confirm the disappearance of the nidus ((a) axial; (b) sagittal; (c) coronal view).
case_images: CRIM.MEDICINE2013-746472.004.jpg
case_images: PMC3608179_01_CRIM.MEDICINE2013-746472.004.jpg
case_images: fig4
case_images: Postoperative CT scan confirmed that the nidus was entirely removed (Figure 4). 