Ros P R, Eshaghi N
Department of Radiology, University of Florida College of Medicine, Gainesville, 32610.
Magn Reson Imaging. 1991;9(3):463-5. doi: 10.1016/0730-725x(91)90436-p.
We present a case of plexiform neurofibroma of the pelvis in a patient with neurofibromatosis using magnetic resonance imaging (MRI) with computed tomography (CT) correlation. We discovered an extensive pelvic mass with a slightly greater signal intensity than muscle in T1-weighted images and a marked increased signal intensity in T2-weighted images. Multiple hypointense septations were identified throughout the tumor, particularly in the T2-weighted images. The MR appearance of pelvic plexiform neurofibroma is identical to those found in spinal and paraspinal locations. In the presence of an extensive pelvic mass in a patient with neurofibromatosis, MRI is recommended in evaluating and diagnosing plexiform neurofibroma. Since the MRI appearance of this tumor is characteristic, other lesions can possibly be ruled out. In addition, MRI's multiplanar capability is ideally suited to demonstrate the extension of these large tumors.
我们报告一例患有神经纤维瘤病的患者骨盆丛状神经纤维瘤，采用磁共振成像（MRI）并与计算机断层扫描（CT）进行对比。我们发现一个广泛的盆腔肿块，在T1加权图像中信号强度略高于肌肉，在T2加权图像中信号强度显著增加。在整个肿瘤中发现多个低信号分隔，尤其是在T2加权图像中。盆腔丛状神经纤维瘤的磁共振表现与在脊柱和脊柱旁部位发现的表现相同。对于患有神经纤维瘤病且有广泛盆腔肿块的患者，建议使用MRI来评估和诊断丛状神经纤维瘤。由于这种肿瘤的MRI表现具有特征性，其他病变有可能被排除。此外，MRI的多平面成像能力非常适合显示这些大肿瘤的范围。
