【摘要】 目的分析总结颅内软骨瘤的CT、MRI特点,并与临床病理相对照。方法回顾性分析7例经手术病理证实的颅内软骨瘤的影像学资料、临床资料及病理资料。结果颅底发病5例,左侧顶叶大脑镰旁发病1例,右侧顶枕骨区发病1例;CT上病灶内见多发不规则钙化或残留骨质,呈混杂密度,可见多发低密度区域,边界清楚;MRI上均呈混杂信号,可见更长T₁、短T₂信号,肿瘤软骨基质及黏液成分呈长T₁、长T₂信号,5例内部可见片状短T₁信号;MR增强扫描后7例均可见明显不均匀花边样强化,肿瘤实质部分常规增强未见强化。结论软骨瘤是颅内少见肿瘤,好发于前颅窝底,CT上有多发钙化或残留骨,MR增强扫描呈明显不均匀花环样强化,CT、MR对其诊断及鉴别诊断具有重要临床价值。更多还原

【Abstract】 Objective To investigate the CT and MRI features of intracranial chondroma.Methods The CT and MM as well as clinical information of 7 patients with histologically confirmed intracranial chondromas were reviewed.Results The tumors were located in the skull base（5）,left parietal lobe parafalcian region（l）,and right parietal-occipital region（1）.CT showed multiple irregular calcifications or residual bone in the tumors with mixed densities,multiple cystic areas and well-defined boundary.MRI also showed heterogeneous signal intensities with T₁ and T₂ hypointense calcifications as well as T₁ hypointense and T₂ hyperintense cartilaginous and cystic components.In 5 patients,the tumors were hyperintense on T₁-weighted images.Lace pattern of contrast enhancement and non-enhancing cystic components were noted in 7 patients.Conclusions Intracranial chondroma is a rare intracranial tumor with predilection in the anterior cranial fossa,multiple calcifications or residual bone,irregular lace-like enhancement on CT and MRI.更多还原