Figure 1

Pathological diagnosis according to embryologically classified anatomical ___location of meningiomas. (A–C) Embryological origins of the intracranial meninges. (D) Pathological distribution at ST-ant/lat and ST-post/lat. Each pie chart provides a breakdown of the number of each pathological diagnosis. The size of the pie charts reflects the total number of cases of this type of lesion. (E) Pathological distribution at the skull-base. The numbers indicate the number of cases for each ___location. The sizes of the pie chart indicate the total number of cases for each ___location. (F) Pathological distribution at ST-med. The number indicates the number of cases for each ___location. The sizes of the pie chart indicate the total number of cases for each ___location. (G) The number of pathological diagnoses for each embryologically classified tumor. The bar graph shows the number of pathological diagnoses for each embryologically classified tumor. (H) Comparison of the ratio of meningothelial meningioma among embryologically classified tumors. The ratio of meningothelial meningioma is significantly higher in tumors derived from the paraxial mesoderm rather than the neural crest or dorsal mesoderm. (p < 0.01, statistically significant on the chi-square test with Bonferroni correction). ST-ant/lat, supra-tentorial-antero-lateral; ST-post/lat, supra-tentorial-postero-lateral; ST-med, supra-tentorial-medial. Figure generated using Microsoft PowerPoint 2016, https://www.microsoft.com.