Deux J F, Marsot-Dupuch K, Ouayoun M, Tran Ba Huy P, Sterkers J M, Meyer B, Tubiana J M
Service de Radiologie, Hôpital Saint-Antoine, Paris, France.
Neuroradiology. 1998 Oct;40(10):684-9. doi: 10.1007/s002340050665.
We report the use of MRI in the diagnosis, follow-up and therapeutic management of three cases of intralabyrinthine Schwannoma. The diagnosis was based on the history and initial and follow-up MRI findings. The main feature suggesting the diagnosis was a nodular intralabyrinthine mass of low signal intensity on T2-weighted images, and high or isointense signal on T1-weighted images (relative to cerebrospinal fluid), which showed contrast enhancement. Follow-up imaging showed growth of the tumour in one patient. One patient underwent surgery for severe tinnitus. To detect these lesions, MRI should be focussed on the inner ear, using thin-section T2-weighted and T1-weighted images before and after contrast medium. MRI allowed informed surgical planning.
我们报告了MRI在3例迷路内神经鞘瘤的诊断、随访及治疗管理中的应用。诊断基于病史以及初次和随访的MRI表现。提示诊断的主要特征是在T2加权图像上为迷路内低信号强度的结节状肿块，在T1加权图像上为高信号或等信号（相对于脑脊液），且有对比增强。随访成像显示1例患者肿瘤生长。1例患者因严重耳鸣接受了手术。为检测这些病变，MRI应聚焦于内耳，使用注射造影剂前后的薄层T2加权和T1加权图像。MRI有助于制定明智的手术计划。
