摘要
目的探讨颅脑原发性恶性淋巴瘤的CT和MRI表现特征。方法收集经病理证实颅脑原发性恶性淋巴瘤9例,MRI平扫和增强,CT平扫和增强,分析病灶的影像表现。结果 9例中单发6例,多发3例,共检出14个病灶,11个病灶位于中线两旁的深部脑组织内,3个病灶位于脑实质表面,7个病灶呈结节状或团块状,病灶周围水肿中到重度,占位效应较明显。CT平扫病灶全均表现为稍高密度,6例增强扫描病灶呈明显强化。MRI平扫病灶T1WI呈等、低信号,T2WI以高信号多见,增强时实质部分明显均匀强化。结论颅脑原发性恶性淋巴瘤CT、MRI表现具有一定特征性,为临床治疗方案的选择提供重要依据。
Objective To explore the appearances of CT and MRI of primary cranial malignant lymphoma （PCML）. Methods 9 patients with PCML proved by histopathology or testing therapy were included in this study. 5 cases were ex- amined by pre and post-contrast MRI, 1 case with contrast MRI only. 1 case was evaluated with non-contrast CT, and 7 cases with non-contrast and contrast CT. Their imaging finding were retrospectively reviewed. Results The lesions were solitary in 6 patients and multiple in 3 patients. The total 9 patients showed 14 lesions in all. 11 lesions were located at deep cerebral parenchyma beside the midline and 3 at the brain surface. 7 cases were nodular or massive. There were heavy peritumoral edema and relative distinct occupying effect in most lesions. Every lesion showed slightly high density on non- contrast CT and 6 patients showed intense homogeneous enhancement with contrast CT. On MR,the lesions exhibited iso- or slight hypo-signal intensity on T1 WI and hypointensity to slight hyperintensity on T2 WI. After enhancement, the le- sions were demonstrated the intense ho-mogeneous intensification. Conclusion To some extent, the imaging manifesta- tions of the primary cranial malignant lymphoma have its characteristics, which can provide important information for ther- apeutic planning.
出处
《医学影像学杂志》
2015年第7期1135-1137,1141,共4页
Journal of Medical Imaging
关键词
脑
原发性淋巴瘤I体层摄影术
X线计算机
磁共振成像
Brain neoplasmp
erimary lymphomaj Non-hodgkins
Tomography, X-ray computed
Magnetic resonance imaging
