What is the prevalence of Empty Sella Syndrome?

Empty Sella Syndrome is a condition where the sella turcica, the bony structure at the base of the brain, appears empty on imaging, often because it is filled with cerebrospinal fluid. Prevalence is difficult to determine because many individuals are asymptomatic and remain undiagnosed, though autopsy studies suggest it may be present in 5% to 20% of the general population.

How common is Empty Sella Syndrome?

While often classified as a rare condition in clinical settings, autopsy data suggests that Empty Sella Syndrome is significantly more common than formal clinical diagnoses indicate. Because many people with Empty Sella Syndrome never experience symptoms, they are never imaged, leading to a massive disparity between "radiological prevalence" and "clinical prevalence." True incidence rates are unknown, as there is no universal screening process.

Who is most affected by Empty Sella Syndrome?

Empty Sella Syndrome demonstrates a distinct demographic bias, with clinical cases being reported much more frequently in specific groups:

• Gender: Primary Empty Sella Syndrome is observed significantly more often in women, particularly those who are obese or have a history of hypertension.


• Age of onset: While it can occur at any age, diagnosis typically peaks in middle-aged adults, often between the ages of 30 and 50.


• Geographic/Ethnic factors: There is no clear evidence of geographic or ethnic clustering, though clinical recognition varies by access to neuroimaging technology.

Why is prevalence data for Empty Sella Syndrome challenging?

Accurate statistics for Empty Sella Syndrome are hampered by the high rate of incidental findings. Currently, 15 people with Empty Sella Syndrome have joined the DiseaseMaps.org community to share their lived experiences, providing a crucial real-world perspective that complements clinical data. The primary challenge remains that in many patients, the "empty" appearance on an MRI is a benign anatomical variation rather than a symptomatic pathology.

Next steps

• Consult an endocrinologist to assess pituitary function if you have received an incidental diagnosis.


• Discuss your MRI findings with a neurologist or neurosurgeon to determine if symptoms correlate with the imaging.


• Join the Empty Sella Syndrome community on DiseaseMaps.org to connect with others and track your health journey.

Medical disclaimer: This information is for educational purposes and does not replace professional medical advice, diagnosis, or treatment.

References

• National Institute of Neurological Disorders and Stroke (NINDS/NIH) - Empty Sella Syndrome Information Page.


• Orphanet (ORPHA: 3122) - Rare Disease Database entry for Empty Sella Syndrome.


• Genetic and Rare Diseases (GARD) Information Center - Clinical summary for Empty Sella Syndrome.


• PubMed/NCBI - Systematic reviews on the prevalence of incidental pituitary findings in neuroimaging.