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KMID : 1103720190800010081
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Journal of the Korean Society of Radiology
2019 Volume.80 No. 1 p.81 ~ p.87
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Orbital Rim Uptake on Bone Scans and Its Clinical Significance
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Hwang Yeong-Uk
Cha Soon-Joo
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Abstract
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Purpose: This study is to evaluate orbital rim uptake on bone scan and to discuss their clinical significance.
Materials and Methods: From January 2011 to August 2013, 3149 cases of bone scans were analyzed to check for existence of uptake abnormalities in the orbital rim with relative size and position. The bone scans were compared with either positron emission tomography-computed tomography (PET/CT) or computed tomography (CT). For cases without other imaging examinations, comparisons were made with other bone scans.
Results: In total, 13 cases of the orbital rib uptake were ultimately evaluated. In 6 cases, the intake abnormalities of the orbital rim appeared in superior lateral aspect of the orbital rim to occupy the highest frequency (46.2%). Distinctively, bone scans showed no abnormal uptake in medial and inferior aspect of orbital rim. The 10 cases are compared with PET/CT or CT and as a result, there are no abnormalities that correspond to the orbital lesions of bone scans. The 3 cases were compared with other bone scans and no changes in the orbital lesions were confirmed between the bone scans.
Conclusion: There is an unilateral, small, focal orbital rim uptake on bone scans to be possibility of nonspecific benign lesions.
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KEYWORD
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Radioisotope Scanning, Orbital Area, Positron Emission Tomography-Computed Tomography, Multidetector Computed Tomography
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