Smith M M, Thompson J E, Thomas D, Castillo M, Carrier D, Mukherji S K, Gilliam D
Department of Radiology, University of North Carolina School of Medicine, Chapel Hill, USA.
AJNR Am J Neuroradiol. 1997 Feb;18(2):327-9.
Choristomas, masses of normal tissues in aberrant locations, contain smooth muscle fibers and fibrous tissues. We describe the MR imaging features of two choristomas located in the internal auditory canals and arising from the facial and vestibulocochlear nerves. Both lesions enhanced with contrast material. In one case, enhancement was seen in the geniculate ganglion and greater superficial petrosal nerve. In the other, a medial component enhanced less than the lateral component did.
迷离瘤是指正常组织出现在异常部位形成的肿块，包含平滑肌纤维和纤维组织。我们描述了两例位于内听道、起源于面神经和前庭蜗神经的迷离瘤的磁共振成像特征。两个病变均有对比剂增强。其中一例，膝状神经节和岩浅大神经有强化。另一例，内侧部分强化程度低于外侧部分。
