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| CT diagnosis of pelvic neurogenic tumors |
| DONG Peng, WANG Bin, CHANG Guang-hui, SUN Xi-he, GUAN Yue, GE Yan-ming |
| Medical Imaging Center, the Affiliated Hospital of Weifang Medical College, Weifang Shandong 261031, China |
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Abstract Objective: To investigate the spiral CT features of pelvic neurogenic tumors. Materials and Methods: Consecutive 13 cases of pelvic neurogenic tumors proven by surgery and pathology were reviewed. All of these patients underwent plain and contrast-enhancement CT scan. Results: Thirteen cases included 5 neurilemmomas(3 malignant cases included), 5 neurofibromas, 1 neuroblastoma, 1 ganglioneuroma, 1 malignant paraganglioma. In the 13 cases, 2 cases derived from plexus sacralis, 2 cases located in the pelvic peritoneal space, 6 cases located in the pelvic extraperitoneal space, and 3 cases located in the vesica extraperitoneal space. Neurogenic tumors showed regular/irregular masses with big volume, well-defined/ill-defined margin, heterogeneous density, cyst formation, calcifications, and peripheral/heterogeneous contrast enhancement. Conclusion： Spiral CT can demonstrate the features of the pelvic neurogenic tumors and has diagnostic value.
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Received: 05 August 2006
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2007, Vol. 18 
