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目的察蛛网膜颗粒压迹。方法选取干燥颅顶骨30例,采用人类非测量性观察法及游标卡尺(精确度0.02 mm)测量,观测蛛网膜颗粒压迹的存在、数目、形态、大小、分布等特征。结果 30例颅骨顶骨蛛网膜颗粒压迹中,左侧最大直径为(10.77±4.16)mm,右侧最大直径为(9.48±4.06)mm;2例顶骨中蛛网膜颗粒压迹位于矢状缝,其余分布矢状缝两侧;1例顶骨因蛛网膜颗粒较大致颅骨骨缺失,出现直径为15.02 mm圆孔。结论蛛网膜颗粒常分布于矢状缝的两旁,可突破颅骨外板,造成骨质缺损,临床上影像诊断应加以鉴别。
Objective To investigate the arachnoid granules indentation. Methods Thirty patients with dry cranial parietal bone were selected for measurement of the existence, number, morphology, size, distribution and other characteristics of arachnoid gland puncture by human non-measurement observation and vernier caliper (accuracy of 0.02 mm). Results The maximal diameter of the left arachnoid (30.77 ± 4.16) mm and the maximum diameter of the right (9.48 ± 4.06) mm were found in 30 cases of arachnoid atrial appendage. The apex of the arachnoid was located in the sagittal suture, The other distribution of bilateral sagittal suture; 1 case of parietal bone due to arachnoid larger skull bone missing, there is a diameter of 15.02 mm round hole. Conclusion Arachnoid granules are often distributed on both sides of the sagittal suture, which can break the outer skull plate and cause bone defects. Clinical imaging diagnosis should be identified.