Incidentally found and unexpected tumors discovered by MRI examination for temporomandibular joint arthrosis

被引：18
|
作者：
Yanagi, Y [1 ]
Asaumi, J [1 ]
Maki, Y [1 ]
Murakami, J [1 ]
Hisatomi, M [1 ]
Matsuzaki, H [1 ]
Konouchi, H [1 ]
Honda, Y [1 ]
Kishi, K [1 ]
机构：
[1] Okayama Univ, Grad Sch Med & Dent, Field Tumor Biol, Dept Oral & Maxillofacial Radiol, Okayama 7008525, Japan
来源：
EUROPEAN JOURNAL OF RADIOLOGY | 2003年 / 47卷 / 01期
关键词：
head and neck; TMJ; surface coil; incidentally found tumor; unexpected tumor; malignant tumor; TMJ arthrosis;
D O I：
10.1016/S0720-048X(03)00095-0
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
We examined the frequency of incidentally found or unexpected tumors discovered at the time of magnetic resonance imaging (MRI) examinations in the temporomandibular joint (TMJ) region for patients with suspicion of TMJ arthrosis. Five MR images (T1-weighted transverse scout image and proton density and T2-weighted oblique sagittal images at the open and closed mouth) were acquired. In 2776 MRI examinations of TMJ arthrosis, two tumors were discovered. They consisted of an adenoid cystic carcinoma in the deep portion of the parotid gland, and a malignant tumor extending from the infratemporal fossa to the parapharyngeal space. The rate of incidentally founded or unexpected tumors in TMJ examinations was low (0.072%), but the two tumors found were malignant tumors, and therefore, scout image should be carefully examined, not only used for positing the slice. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved.
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页码：6 / 9
页数：4
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