Analysis of clinical characteristics of asymptomatic supratentorial meningiomas:a report of 163 cases
Objective To explore the clinical characteristics of supratentorial asymptomatic meningiomas.Methods A total of 163 patients with asymptomatic meningiomas diagnosed in the Neurosurgery Center of Beijing Tiantan Hospital,Capital Medical University from January 2019 to August 2023 were retrospectively collected,of which 122 were surgically treated and 41 were outpatients undergoing follow-up.We documented the patient's gender,age distribution,tumor location,size,histopathological type,World Health Organization(WHO)grade,etc.Results Among the 163 patients,there were 51 males and 112 females,with a male-to-female ratio of 1.0:2.2;the age of onset was 53.25±10.75 years old(22-80 years old),and patients aged 50-59 accounted for the highest proportion(68 cases,41.72％),followed by 60 to 69 years old(36 cases,22.09％);the age difference between male and female patients was not statistically significant(P=0.127).Tumors located on the convex surface of the brain were most common,accounting for 73.62％(120 cases),followed by the parasagittal sinus,accounting for 16.56％(27 cases).Tumors adjacent to the falx cerebri,within the ventricular system,and supra-tentorium cerebelli were less frequently observed.The M(Q1,Q3)of the tumor volume was 6.08(1.87,15.78)cm3.Among the 122 patients who underwent surgical resection,97 cases(79.51％)were WHO grade 1,21 cases(17.21％)were grade 2,and 4 cases(3.28％)were grade 3.The predominant histopathological types were transitional(44 cases,36.07％),fibroblastic(31 cases,25.41％),and meningothelial(21 cases,17.21％),with fibroblastic meningiomas presenting the most widespread distribution across different locations,followed by transitional and meningothelial types.Postoperative complications occurred in 21 cases(17.20％),distributed as 10 cases(8.20％)in WHO grade 1,8 cases(6.56％)in grade 2,and 3 cases(2.46％)in grade 3.Conclusion Initial findings indicate that supratentorial asymptomatic meningiomas may exhibit distinct clinical features compared with the general profile of meningiomas.
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