Calcification of the Falx Cerebri: A Common Finding in CT

Introduction

Calcification of the falx cerebri is a common incidental finding on computed tomography (CT) scans of the brain. It is a physiological calcification that is typically seen in older adults. Most radiologists do not mention it in their reports if it is seen on a CT scan.

Embryological Basis

The falx cerebri is a fold of dura mater that separates the two cerebral hemispheres. It is derived from embryonic mesenchymal cells. Ossification of the falx cerebri is a normal process that occurs during development. However, in some cases, the ossification process can continue into adulthood, leading to calcification of the falx cerebri.

Clinical Significance

Calcification of the falx cerebri is not typically associated with any clinical symptoms. It is usually an incidental finding on a CT scan. However, in some cases, it can be associated with other conditions, such as head trauma, infection, or tumors.

Imaging Findings

On CT scans, calcification of the falx cerebri appears as a thin, linear calcification along the midline of the brain. It is typically located in the anterior portion of the falx cerebri. The calcification can be unilateral or bilateral.

Differential Diagnosis

The differential diagnosis of calcification of the falx cerebri includes:

• Meningioma
• Tuberculoma
• Metastatic disease
• Other calcified lesions

Conclusion

Calcification of the falx cerebri is a common incidental finding on CT scans of the brain. It is typically a physiological calcification that is not associated with any clinical symptoms. However, it is important to be aware of the differential diagnosis of calcification of the falx cerebri in order to rule out other potential causes.