Vorster S J, Lee J H, Ruggieri P
Department of Neurosurgery, The Cleveland Clinic Foundation, OH 44195, USA.
AJNR Am J Neuroradiol. 1998 Nov-Dec;19(10):1853-5.
We report an unusual case of an amyloidoma of the gasserian ganglion associated with trigeminal neuralgia. MR imaging showed a mass in Meckel's cave, which was isointense with surrounding tissue on T1-weighted images and hypointense on T2-weighted images. After contrast administration, the mass enhanced homogeneously, and thin cuts through the region showed involvement in the expected location of the gasserian ganglion and, more laterally and inferiorly, in the proximal part of V1. A review of the literature revealed that only one similar case has been reported since the advent of modern neuroimaging. Amyloidoma, although rare, may be considered as a rare differential diagnosis of a mass in this region.
我们报告一例罕见的与三叉神经痛相关的半月神经节淀粉样瘤病例。磁共振成像显示 Meckel 腔有一肿块，在 T1 加权图像上与周围组织等信号，在 T2 加权图像上呈低信号。注射造影剂后，肿块均匀强化，该区域的薄层扫描显示病变累及半月神经节的预期位置，更外侧和下方累及 V1 近端。文献回顾显示，自现代神经影像学出现以来，仅报道过一例类似病例。淀粉样瘤虽然罕见，但在该区域肿块的鉴别诊断中应考虑为一种罕见的可能。
