完全囊变的斜坡脊索瘤1例

患者,女,14岁。因“阵发性头痛3月,加重2月”入院。既往体健,无恶心、呕吐、眩晕、复视及抽搐等,体检病理征阴性。     

垂体大腺瘤临床及MRI特点在不同性别间的比较

目的 比较男性和女性垂体大腺瘤的临床及MRI特点.方法 230例(男104例,女126例)经病理证实的垂体大腺瘤患者按性别分为两组,分别计算每组的平均年龄、瘤体内出血和海绵窦受累的比率、肿瘤体积,并进行组间比较,同时比较两组病例的病理类型构成.结果 男性组年龄、瘤内出血率、海绵窦受累率及肿瘤体积分别为(44.8±13.2)岁、21.15%(22/104)、50.00%(52/104)及6100.48 mm3;女性组分别为(44.8±11.9)岁、28.57%(36/126)、48.41%(61/126)及5037.05 mm3.两组病例的年龄、瘤内出血率、海绵窦受累率、肿瘤体积及病理类型构成无统计学差异(P=0.972,P= 0.197,P=0.811,P=0.189,P=0.093).结论 垂体大腺瘤的临床及MRI特点无性别差异.     

腰椎间盘髓核退变的MRI研究(英文)

Objective The purpose of this study was to correlate T2 signal intensity values in nucleus pulposus of lumbar discs with patient age,gender and stage of nucleus pulposus degeneration.Methods Lumbar imaging findings of 422 cases subjects were retrospectively reviewed through T2 signal intensity values of nucleus pulposus evaluated based on the signal intensity values of MR T2-weighted mid-sagittal images of the lumbar spine,the t2 signal intensity values at all five lumbar levels (from L5-S1 to L1-L2) between male and female were used independent sample t-test and the Spearman correlation analysis.The age and grade of nucleus pulposus of disc degeneration and T2 signal intensity values were estimated by calculating and Chi-square test and the Spearman correlation analysis.The t-test was used to correlate the different anatomic levels of disc degeneration;T2 signal intensity values among the five different anatomic levels using non-parametric correlation analysis.Results There were significantly differences in T2 signal intensity values of nucleus pulposus at the same grade and anatomic level between male and female.Advanced with age,T2 signal intensity values of nucleus pulposus decreased and stage of disc degeneration increased accordingly.T2 signal intensity values may represent the nucleus pulposus degeneration of interverterbral disc.L4-L5 was the highest incidence among the nucleus pulposus degeneration of intervertebral disc.Conclusions The T2 signal intensity values based approach may be a feasible and practical tool to determine nucleus pulposus degeneration.T2 signal intensity values of nucleus pulposus of lumbar intervertebral disc are correlated with grade of degeneration and patient age.