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KMID : 0613320100160010047
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Journal of the Korean Bone and Joint Tumor Soceity
2010 Volume.16 No. 1 p.47 ~ p.50
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Role of MRI and Plain Radiograph to Diagnose Fibrous Dysplasia Mimicking Metastasis on PET/CT in a Patient with Breast Cancer
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Cho Song-Mee
Jee Won-Hee
Yoo Ie-Ryung
Lee Ah-Won
Chung Yang-Guk
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Abstract
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Fibrous dysplasia is a common benign disorder of bone in which normal bone marrow is replaced with fibro-osseous tissue. As PET/CT is increasingly used for the staging of different malignant disease, incidentally found fibrous dysplasia with increased FDG uptake may mimic metastasis. We report on a 46-year-old woman with fibrous dysplasia who underwent PET/CT because of suspected recurrence of breast cancer and was misdiagnosed as a bony metastasis with a focal FDG uptake on left proximal femur. This lesion was interpreted as fibrous dysplasia based on MRI in addition to the plain radiographs. We conclude that MRI in addition to radiography may help to differentiate fibrous dysplasia mimicking metastasis on PET/CT in the patients with malignancy.
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KEYWORD
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fibrous dysplasia, PET/CT, MRI
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