In case of any visible sign or symptom, consult a physician who may refer you to a neurologist or a neurosurgeon for further investigations. Diagnosis is usually made by the doctor on the basis of:
Medical History
Physical examination
Tests as required
Biopsy
Blood and urine tests
Imaging tests like
Computerized tomography (CT) scan
Magnetic Resonance tomography (MRI)
Positron emission tomography (PET) scan