Explanation
•The child is showing signs and symptoms of a brain tumor. A CT scan is a noninvasive method of supporting the diagnosis. A definitive diagnosis can only be confirmed by histological examination of biopsy tissue.
•The most common symptoms of a brain tumor include headache, seizures, nausea and vomiting, visual changes, syncope, and papilledema.
•A lumbar puncture, bone marrow biopsy, or x-ray will not aid in the diagnosis of a brain tumor.