颅内粟粒性钙化转移的CT与MRI影像表现  

CT and MRI Features of Intracranial Miliary Calcified Metastases

作　　者：梁高 余薇[1] 谢明国[1] 宫宁 张明星[1] 曹旭 廖萌 LIANG Gao;YU Wei;XIE Mingguo(Department of Radiology,Hospital of Chengdu University of Traditional Chinese Medicine,Chengdu,Sichuan Province 610075,P.R.China)

机构地区：[1]成都中医药大学附属医院放射科,610072 [2]上海交通大学医学院附属瑞金医院,200020

出　　处：《临床放射学杂志》2022年第12期2171-2175,共5页Journal of Clinical Radiology

摘　　要：目的探讨颅内粟粒性钙化转移的CT、MRI特征性表现。方法回顾性分析6例颅内粟粒性钙化转移患者的临床、CT和MRI影像资料。结果1例初发有临床神经系统症状。6例患者均表现为颅内多发的粟粒-结节样钙化灶,5例幕上、幕下同时受累,1例幕上,病灶多分布于皮层。5例CT增强扫描有强化。4例病灶周围均无水肿,2例病灶周围轻度水肿。3例CT随访中病灶进展,周围水肿未见变化。2例患者MRI增强扫描有强化,2例T_(1)WI呈低信号或高信号,T_(2)WI呈稍高信号,ADC图呈低信号,1例常规序列未发现病灶。结论MRI或CT增强扫描颅内多发粟粒或结节样钙化病灶强化和随访病灶进展有利于提高该病的诊断。Objective To investigate the CT and MRI features and clinical characteristics of intracranial miliary calcified metastases.Methods 6 patients with calcified metastases were collected to retrospectively analyzed the imaging features of CT,MRI and clinical information in this study.Results 1 patient presented primarily with clinical neurological symptoms.Six of all patients(1 in supratentorial area and 5 in supratentorial area and subtentorial area simultaneously)presented with multiple miliary-nodular calcifications,which were mostly located in the cortex.Five patients underwent CT enhanced examination.There were two cases with mild edema around and four cases without edema around.In the period of CT follow-up,three cases of all were found to have progressed,but there were no change in surrounding edema.Two cases presented enhancement in MRI contrast-enhanced examination,two cases showed low or high signal on T_(1)WI,slightly high signal on T_(2)WI,low signal on apparent diffusion coefficient maps.In one case,no lesion was found by conventional sequence.Conclusion MRI or CT contrast-enhanced scanning of multiple miliary or nodular calcification lesions in the brain and follow-up of their progression can improve the diagnosis of this disease.

关 键 词：钙化 颅内转移 体层摄影术 X线计算机 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R741[医药卫生—诊断学]