颅底软骨瘤的CT诊断

目的：探讨颅底软骨瘤的CT影像学表现，以提高其诊断准确性。方法回顾性分析8例经手术病理证实的颅底软骨瘤的CT征象。结果8例病灶位于颅底鞍旁区硬膜外，病灶呈不均匀混杂密度，病灶及包膜呈轻中度强化，8例病灶内见点条状、分隔状或边缘不规则弧形钙化，3例邻近骨质呈压迫性骨缺损。结论在颅底鞍旁区硬膜外的类圆形或分叶状肿块中，如其内或边缘出现形态多样的钙化灶时，需考虑颅底软骨瘤的诊断。

CT Imaging Analyse of Skull Base Chondromas

Objective To investgate CT features of skull base chondromas and to improve the diagnosis accuracy of it. Methods CT features of skull base chondromas in 8 cases confirmed by surgery pathology were retrospectively analyzed. Results The lesions arised from skull base and found in the parasellar epidural regions in 8 cases. The lesions showed heterogeneous mixed density and presented low or intermediate enhancement, There were oppressive bone destructions near the tumor in 3 cases, There were spot,strip or arc of fringe calcifications in the tumor in 8 cases. Conclusion If a round or lobulated lesion arised from skull base and parasellar epidural regions, which multiple shapes calcifications were found in it or on its fringes, skull base chondromas should be considered.