Undetected Brain Tumors More Prevalent in Older Women Than Previously Recognized

Recent research from the University of Gothenburg reveals that undiagnosed brain tumors, specifically meningiomas, are more common among older women than previously understood. The study examined a random sample of 70-year-olds and found that 2.7% of women in this age group had these tumors, which originate from the meninges, the membranes surrounding the brain. In contrast, the prevalence among men was significantly lower at 1.8%. Meningiomas are typically benign and grow slowly, often discovered incidentally during MRI scans conducted for other reasons.

The investigation was part of the extensive H70 population study, which involved MRI examinations of randomly selected individuals. Lead researcher Erik Thurin and his team highlighted that many of these tumors are asymptomatic and may never require treatment. They emphasized the importance of careful assessment before deciding on surgical intervention, as some tumors can be safely monitored through regular imaging.

Most meningiomas can be effectively treated with surgery if necessary, and prognosis is generally favorable. However, unnecessary surgery carries risks, and therefore, medical professionals recommend distinguishing between tumors that need removal and those suitable for observation. The study underscores the importance of avoiding overdiagnosis and unnecessary procedures in older patients.

The findings contribute to a nuanced understanding of incidental brain tumors in aging populations and underscore the importance of balancing vigilance with caution. As meningiomas become increasingly common with age, especially among women, personalized management strategies are essential for optimal care.

For further details, the full study can be accessed in the journal Acta Neurochirurgica: [DOI: 10.1007/s00701-025-06506-7].

Source: Medical Xpress