George J C, Caldemeyer K S, Kreipke D L, Chalian A A, Moran C C
Department of Radiology, Indiana University School of Medicine, Indianapolis.
Arch Otolaryngol Head Neck Surg. 1994 Dec;120(12):1393-4. doi: 10.1001/archotol.1994.01880360085015.
Acute mastoiditis is a complication of acute otitis media that produces air cell opacification and coalescence on computed tomographic (CT) imaging. This appearance, however, is nonspecific and may be seen in patients with infection and tumor. Magnetic resonance imaging (MRI) can aid in differentiating the two on the basis of differences in tissue signal characteristics and by showing the presence or absence of an associated soft-tissue mass. In this report, we demonstrate the utility of MRI as a complementary imaging modality to CT in the diagnosis of a solitary plasmacytoma of the temporal bone that was initially thought to be coalescent mastoiditis.
急性乳突炎是急性中耳炎的一种并发症，在计算机断层扫描（CT）成像上表现为气房混浊和融合。然而，这种表现并不具有特异性，在感染和肿瘤患者中也可能出现。磁共振成像（MRI）可根据组织信号特征的差异以及是否存在相关软组织肿块来辅助鉴别这两种情况。在本报告中，我们展示了MRI作为CT的补充成像方式在诊断颞骨孤立性浆细胞瘤中的作用，该病例最初被认为是融合性乳突炎。
