Question

What is the most common cause of malignant brain tumors?

a.

Metastatic deposits from a distant site

b.

Primary tumors arising in the brain cells

c.

Astrocytomas

d.

Ependymomas

Answer: (a).Metastatic deposits from a distant site Explanation:More commonly, malignant brain tumors are due to metastatic deposits from a distance site, especially carcinoma of the bronchus.

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Q. What is the most common cause of malignant brain tumors?

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