颅内蝶鞍区占位性病变的分布及CT影像学特征研究

Distribution and CT Imaging Characteristics of the Space-Occupying Lesion in the Intracranial Sella Region

目的分析颅内蝶鞍区占位性病变的分布及CT影像学特征。方法收集本院2017年5月至2019年7月收治的135例接经影像学检查发现颅内蝶鞍区占位性病变患者的临床资料,后均经病理检查确诊,收集患者CT图像进行分析良、恶性颅内蝶鞍区占位性病变影像学征象特点并统计病变分布特点。结果良性占位病变多为单区域(鞍内、鞍上、鞍旁),占比为60.72%(68/112),恶性占位病变多为混合区域,占比为78.26%(18/23)(P<0.05);良、恶性颅内蝶鞍区占位性病变CT征象在病灶大小、形态、边界、病灶周围骨质破坏情况上差异存在统计学意义(P<0.05),69.64%(78/112)良性占位性病变<3 cm,病灶形态规则,边界清楚,骨质无破坏;69.56%(16/23)恶性病变肿瘤直径≥3cm,病灶形态不规则,边界不清楚,病灶周围骨质破坏明显。结论颅内蝶鞍区占位性病变的分布及CT影像学表现均有一定的特点,可为颅内蝶鞍区占位性病变性质诊断提供重要参考依据。

Objective To analyze the distribution and CT imaging characteristics of the space-occupying lesion in the intracranial sella region.Method The clinical data of 135 patients admitted to our hospital from May 2017 to July 2019 who underwent imageological examination and were found space occupying lesions in the intracranial sella region were collected and confirmed by pathological examination.The CT images of patients were collected to analyze the imaging characteristics of benign and malignant space occupying lesions in the intracranial sella region and to analyze the distribution characteristics of the lesions.Results The benign space occupying lesions are mostly in single areas(intrasellar,suprasellarand the parasellar),accounting for 60.72%(68/112),and the malignant space occupying lesions are mostly in mixed areas,accounting for 78.26%(18/23)P<0.05).The difference in the in lesion size,shape,border,and bone destruction around the lesions of CT signs between benign and malignant space occupying lesions in the intracranial sella region is statistically significant(P<0.05).The diameter of 69.64%benign space-occupying lesions(78/112)is<3 cm,the shape of the lesion is regular,the boundary is clear,and the bone is not damaged.The diameter of 69.56%(16/23)malignant lesions is≥3 cm.The shape of the lesion is irregular,the boundary is unclear,and the bone damage around the lesion is obvious.Conclusion The distribution of space occupying lesions in the intracranial sella region and CT imaging both have some characteristics,which can provide an important reference in the diagnosis of the nature of the space occupying lesions in the intracranial sella region.