【摘要】 目的　探讨脾原发性恶性淋巴瘤 (PMLS)的螺旋CT表现特征。资料与方法　回顾性分析 5例经手术病理证实的PMLS术前螺旋CT资料。其中非霍奇金淋巴瘤 (NHL) 4例 ,均为B细胞型。霍奇金病 (HD) 1例 ,为混合型。结果　脾肿大 4例 ,其中 3例为不规则隆起样增大 ,呈分叶状 ;脾大小正常 1例。脾内占位的CT表现有 3种类型 :(1)弥漫性细小结节型 1例 ,脾大小正常 ,脾内弥漫性低密度小结节 ,大小为 0 .2～ 1.0cm ;(2 )多发结节型 2例 ,其直径为 >1.0cm圆形或类圆形的低密度结节 ;(3)巨块型 2例 ,其直径为 >3.0cm低密度肿块。结论　PMLS在螺旋CT上多表现为脾肿大伴弥漫性或孤立的低密度占位 ,增强扫描无强化更多还原

【Abstract】 Objective To clarify the CT features of the primary malignant lymphoma of spleen (PMLS).Materials and Methods Helical CT findings in 5 patients with pathologically confirmed PMLS, including 4 non Hodgkin’s lymphoma and one Hodgkin’s disease, were retrospectively analyzed.Results Splenomegaly was seen in 4 cases, of which irregular enlargement and lobulation of the spleen were seen in 3. The intrasplenic space occupying lesions could be classified into three types on CT. (1) Diffuse fine nodule type (n=1), presenting as multiple low density nodules, sized 0.2～1.0 cm with normal size of the spleen. (2) Multiple nodule type (n=2), displaying as multiple round or spherical low density lesions with the diameter over 1 cm. (3) Huge mass type (n=2), which was characterized by a low density huge mass (>3 cm).Conclusion On helical CT scan, PLMS displays as splenomegaly with diffuse or solitary low density lesions, and shows no enhancement after contrast injection in most cases.更多还原