Superior Clinical Impact of FDG-PET Compared to MRI for the Follow-up of a Patient with Sacral Lymphoma
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- Yamamoto Yasuhiro
- Department of Internal Medicine, Heisei Memorial Hospital
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- Taoka Toshiaki
- Department of Radiology, Nara Medical University
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- Nakamine Hirokazu
- Division of Pathology and Immunology, Kansai University for Medical Science
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The assessment of residual tumors after treatment of malignant lymphoma (ML) is often difficult. Here we report a case of non-Hodgkin's lymphoma with a huge sacral tumor. After chemotherapy and following radiation therapy, a residual mass was detected on magnetic resonance imaging (MRI). However, a hypermetabolic lesion in the sacrum disappeared on 18F-fluorodeoxyglucose positron emission tomography (18F-FDG-PET) and clinically the patient was considered to achieve complete remission. Seven months after the completion of radiation therapy, a new tumor-like lesion in the sacrum developed on MRI, but hypermetabolic lesions were not detected on 18F-FDG-PET. Recurrence of lymphoma was denied by open biopsy of the lesion. 18F-FDG-PET has been of widespread use not only for staging but for post-treatment assessment of ML. Although MRI is a standard imaging tool for the assessment of bone involvement of ML, there have been few reports documenting the results of comparative studies on the usefulness of 18F-FDG-PET and MRI for the evaluation of residual mass in bone involvement of ML. The present case suggests that 18F-FDG-PET is superior to MRI not only in the evaluation of a residual mass but in the judgment of recurrence after treatment of such patients. [J Clin Exp Hematopathol 49(2) : 109-115, 2009]
収録刊行物
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- Journal of Clinical and Experimental Hematopathology
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Journal of Clinical and Experimental Hematopathology 49 (2), 109-115, 2009
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詳細情報
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- CRID
- 1390001204700903552
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- NII論文ID
- 10026387711
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- NII書誌ID
- AA11556796
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- ISSN
- 18809952
- 13464280
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可