How is a small tumor in the brain's epidural space caused?

Sep 26, 2024 Source: Cainiu Health
Disease description:

The older brother living nearby was diagnosed with a small tumor outside the brain's dura mater. It sounds quite alarming. May I ask what causes small tumors outside the brain's dura mater?

Doctor's answer (1)
Dr. Lv Zhiqin

The causes of small extracranial meningiomas are diverse and can be summarized as follows:

1. Genetic factors: Some small extracranial meningiomas may be influenced by genetic factors, which could be related to an individual's genetic characteristics.

2. Perinatal factors: The perinatal period refers to the time span from 28 weeks of pregnancy to one week after birth. Environmental and condition-related factors during this period may affect infant development and could be associated with the occurrence of small extracranial meningiomas.

3. Lifestyle habits: Unhealthy dietary habits and irregular作息 (作息 translates to作息 habits or作息 patterns), such as frequent late-night awakenings and unbalanced diets, may also increase the risk of developing small extracranial meningiomas.

4. External trauma: In some cases, external trauma might stimulate meningeal scar tissue, thereby triggering small extracranial meningiomas.

5. Physical and chemical factors: Long-term exposure to radiation or chemical carcinogens, such as benzene and methyl nitrosamines, may also increase the incidence of small extracranial meningiomas.

6. Tumor viruses: After invading cells, viruses may alter genetic characteristics, promoting uncontrolled cell proliferation, thus leading to small extracranial meningiomas.