【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T₁WI呈低信号或高信号，T₂WI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。更多还原

【Abstract】 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 T₁WI,slightly high signal on T₂WI,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.更多还原