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ID 46864
フルテキストURL
著者
Yanagi, Yoshinobu Department of Oral Diagnosis and Dentomaxillofacial Radiology, Okayama University Hospital of Medicine and Dentistry
Fujita, Mariko Department of Oral and Maxillofacial Radiology, Field of Tumor Biology, Okayama University Graduate School
Hisatomi, Miki Department of Oral and Maxillofacial Radiology, Field of Tumor Biology, Okayama University Graduate School
Matsuzaki, Hidenobu Department of Oral Diagnosis and Dentomaxillofacial Radiology, Okayama University Hospital of Medicine and Dentistry
Konouchi, Hironobu Department of Oral Diagnosis and Dentomaxillofacial Radiology, Okayama University Hospital of Medicine and Dentistry
Katase, Naoki Department of Oral Pathology and Medicine, Field of Tumor Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Nagatsuka, Hitoshi Department of Oral Pathology and Medicine, Field of Tumor Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Asaumi, Jun-ichi Department of Oral Diagnosis and Dentomaxillofacial Radiology, Okayama University Hospital of Medicine and Dentistry
抄録
Aneurysmal bone cysts (ABCs) are classified as bone-related lesions based on the 2005 World Health Organization histological classification of odontogenic tumors. Most ABCs are diagnosed using a combination of conventional radiography, computed tomography, magnetic resonance imaging (MRI), and digital subtraction angiography. ABCs should be differentiated from true cysts or other pseudocysts because their treatment is different. Additionally, unlike other cysts, ABCs pose a hemorrhagic risk in surgery; thus, preoperative evaluation of intralesional blood flow is required. Here we report a case of a mandibular ABC in a 39-year-old woman and focus on its dynamic contrast-enhanced MRI (DCE-MRI) features. On DCE-MRI, the lesion was divided into two areas according to the enhancement pattern: the blood-pooling and blood-flow areas. The series of DCE-MR images of the blood-pooling area showed marked enhancement of the margin, but no enhancement in the inner part of the cavity. Additionally, the time-signal intensity curve (TIC) demonstrated no change in the signal intensity (SI) until approximately 15 min after gadolinium-diethylenetriamine penta-acetic acid (Gd-DTPA) administration. In contrast, the series of DCE-MR images of the blood-flow area exhibited marked enhancement in the cyst cavity in the early phase. The TIC showed a rapid increase in SI in the early phase, followed by a rapid decrease until 150 s, and finally a gradual decrease until approximately 15 min after Gd-DTPA administration. Thus, in the current patient, preoperative DCE-MRI clearly delineated the vessel-rich area within the lesion.
キーワード
Aneurismal bone cyst
Dynamic contrastenhanced MRI
MRI
備考
The final publication is available at www.springerlink.com..
http://dx.doi.org/10.1007/s11282-010-0048-3
発行日
201012
出版物タイトル
Oral Radiology
26巻
2号
出版者
Springer
開始ページ
110
終了ページ
115
ISSN
0911-6028
NCID
AA10689728
資料タイプ
学術雑誌論文
言語
English
著作権者
© Japanese Society for Oral and Maxillofacial Radiology and Springer 2010
論文のバージョン
author
査読
有り
DOI
Web of Sience KeyUT