摘要
目的探讨脾脏窦岸细胞血管瘤的影像表现及临床特征。方法回顾性分析经病理证实的8例脾脏窦岸细胞血管瘤患者的影像及临床特征。结果 8例患者中,3例脾大,5例为多发病灶,3例为单发;病灶大小从点状到直径68 mm不等,为类圆形结节;5例边界清楚,3例边界模糊,均无包膜及钙化;7例CT检查,平扫均为低密度结节,增强扫描3例为静脉期渐进性强化,4例为动脉期明显强化,静脉期减低;1例MRI平扫表现为稍长T2信号,增强为延迟强化;2例PET/CT,1例放射性分布稀疏,1例放射性分布未见异常;6例超声检查,1例为实质回声欠均匀,2例为实性稍低回声,内回声欠均匀,CDFI内可及较丰富血流信号;3例为实性稍高回声结节,内回声欠均匀,CDFI内未见明显血流信号。结论脾脏窦岸细胞血管瘤是罕见的良性肿瘤,常为多发病灶,临床表现不典型,部分有脾大、脾亢。影像学表现为类血管瘤样特点,能明确肿瘤血供情况,确诊依靠病理及免疫组织化学检查。
Objective To investigate the imaging findings and clinical features of littoral cell angioma. Methods The CT and clinical features of 8 patients of littoral cell angioma treated in our hospital and confirmed by pathology were retrospectively analyzed. Results Among the 8 patients, 3 patients showed splenomegaly, 5 patients hadinnumerable lesions, and 3 patients had only a single lesion. The size of the lesions varied from punctate to 68 mm in diameter, and they were rounded nodules in shape. The majority(5/8) of the lesions demonstrated well circumscribed border, with some lesions(3/8) demonstrating a less distinct border. None of the lesions contained any calcification or capsule. On CT,All the lesions presented low-density nodules on CT plain scan, and after enhancement, 3 cases presented progressive enhancement in the venous phase, 4 cases presented obvious enhancement in the arterial phase and washout in the portovenous phase. On MRI,all the lesions demonstrated T2-hyperintense signalsand delayed progressive enhancement. On PET/CT,The radioactive distribution showed scattering in 1 case, andanother showed normalappearance. On US,1 case displayed heterogenousechogenecity in the spleen;2 cases showed hypoechogenicity in spleen with Doppler flow signal. 3 cases showed hyperechogenicity in the spleen without vascularity. Conclusion As a rare benigntumor, Littoral cell angiomaoften has multiple lesions with atypical clinical characteristics. Some of them have splenomegalyand/or hypersplenism, and the imaging findings are similar to hemangioma in characteristics. Imaging examination can detecet the tumor blood supply, and the diagnosis depends on postoperative or puncture pathology and immunohistochemical examination.
作者
吕东博
岳松伟
高剑波
俞富龙
LV Dongbo;YUE Songwei;GAO Jianbo(Department of Radiology,the First Affiliated Hospital of Zhengzhou University,Zhengzhou,Henan Province 450052,P.R.China)
出处
《临床放射学杂志》
北大核心
2021年第4期732-736,共5页
Journal of Clinical Radiology