眼眶原发性肿瘤的CT诊断

目的 回顾性分析眼眶原发性肿瘤的CT表现，以期提高诊断和鉴别诊断能力。资料与方法 搜集经CT检查并经病理或临床证实的眼眶原发性肿瘤56例。均行CT轴位平扫，33例行轴位增强扫描，另有10例行冠状位增强扫描。结果 56例眼眶原发性肿瘤CT发现率100％，良、恶性诊断准确47例，定性诊断准确31例。结论 CT检查可较好地显示肿瘤部位、大小、密度及与周围组织的关系，大部分肿瘤良、恶性可得到明确诊断，对恶性肿瘤定性诊断仍很困难。

CT Diagnosis of Primary Orbital Tumors

Objective To retrospectively analyze CT features of primary orbital tumors, and to improve the diagnosis and differentiation of the disease.Materials and Methods Fifty-six cases with pathologically- or clinically-proved primary orbital tumors were collected. Plain axial CT scanning was performed in all cases, additional enhanced axial and coronal scanning was respectively carried out in 33 and 10 cases.Results On CT, the tumors were detected in all 56 cases (100%). The lesion's nature as benign or malignant was correctly identified in 47 cases, while qualitative diagnosis was correct in 31 cases.Conclusion CT scanning can well display the tumor's location, size, density and the relation with surrounding structures, besides, benign or malignant nature of the lesion can be determined in most cases although making qualitative diagnosis for malignant tumors is still difficult.