Radiation-induced cerebral meningiomas. Case reports

Area of Science:

• Neurology
• Oncology
• Radiology

Background:

• External cranial irradiation is a known risk factor for secondary brain tumors.
• Meningiomas are the most common type of secondary brain tumor following radiation exposure.

Purpose of the Study:

• To present two cases of meningioma following external cranial irradiation.
• To review features distinguishing radiation-induced meningiomas.
• To emphasize the risks versus benefits of radiation therapy.

Main Methods:

• Case study review.
• Literature review of radiation-induced meningiomas.

Main Results:

• Two patients developed meningiomas years after cranial irradiation for different conditions (Tinea capitis and astrocytoma).
• Specific features suggest a causal link between radiotherapy and meningioma development.

Conclusions:

• Radiation therapy can induce meningioma formation.
• Careful consideration of risks and benefits is crucial when deciding on cranial irradiation.