Temporal bone chondroblastoma totally invisible on MRI
Temporal bone chondroblastoma totally invisible on MRI
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DOI：
10.1016/j.anl.2015.12.005
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发表时间：
2016-08-01
影响因子：
1.7
通讯作者：
Ito, Juichi
中科院分区：
文献类型：
--
作者：
Hiraumi, Harukazu;Arakawa, Yoshiki;Ito, Juichi
我们报告一例在MRI上完全看不见的颞骨软骨母细胞瘤。患者为，男，有数月眩晕病史。CT骨窗扫描显示颞下颌关节、中颅窝底和上半规管破坏。肿瘤内可见钙化灶。在磁共振成像上，肿瘤主要位于颞下颌关节内侧，在T1和T2加权图像上均未显示信号。Gd对肿瘤无强化作用。总而言之，肿瘤在增强前后的T1和T2加权图像上完全是信号阴性或“看不见”的。经岩骨-颧骨入路切除肿瘤。(C)2015爱思唯尔爱尔兰有限公司。保留所有权利。
We report a case of temporal bone chondroblastoma that was totally invisible on MRI. The patient was a 64-year-old man who presented with several months history of vertigo. The CT scan with bone window setting showed destruction of the temporomandibular joint, the floor of the middle cranial fossa, and the superior semicircular canal. Calcific foci were seen within the tumor. On MR imaging, the tumor, situating mainly medial to the temporomandibular joint, showed no signal on both T1- and T2-weighted images. The tumor was not enhanced with gadolinium. In summary, the tumor was totally signal negative or "invisible" on pre- and postcontrast T1- and T2-weighted images. The tumor was resected through transpetrosal - transzygomatic approach. (C) 2015 Elsevier Ireland Ltd. All rights reserved.