Prevalence of Meningioma in Women Aged 70+ Years
The prevalence of meningioma in women aged 70 years and older is approximately 1.8-2.8%, with these tumors being predominantly asymptomatic and discovered incidentally.
Epidemiologic Data
The most direct evidence comes from population-based MRI screening studies of elderly women:
- In 70-year-old women specifically, a 2025 Swedish population study found a prevalence of 1.8% (12 of 415 women screened) 1
- In 75-year-old women, an Austrian population study documented a prevalence of 2.8% (9 of 318 women screened), with zero cases found in men of the same age 2
These figures represent clinically silent meningiomas detected through systematic neuroimaging of healthy elderly individuals, not symptomatic cases requiring medical attention.
Key Clinical Context
Female predominance is striking in this age group. Both population studies found meningiomas exclusively or near-exclusively in women, reinforcing that advanced age combined with female gender represents the strongest risk profile 1, 2.
Most meningiomas in this population are asymptomatic. The Swedish study explicitly noted no significant differences in symptoms (headache, dizziness, dementia, quality of life) between participants with and without meningiomas 1. The Austrian study similarly found no associated clinical changes or deficits in any tumor-bearing subjects 2.
Clinical Implications
Caution is warranted when attributing non-specific symptoms to incidentally discovered meningiomas in elderly women. Common complaints like headache or dizziness should not be reflexively attributed to small, incidental meningiomas, as this can lead to unnecessary surgery and patient anxiety 1.
Conservative management is appropriate for most cases. Given the high prevalence of asymptomatic tumors and the lack of correlation with symptoms, observation rather than intervention is justified for incidentally discovered meningiomas in this demographic 1, 2.
Important Caveats
- These prevalence figures reflect all meningiomas detected on MRI, predominantly WHO grade 1 tumors (75-80% of all meningiomas) 3
- The actual symptomatic incidence requiring treatment is substantially lower than the radiologic prevalence
- Prevalence may be even higher with more sensitive imaging protocols, as these studies used standard clinical MRI sequences